A Math

A Math (IGCSE)

E Math

E Math (IGCSE)

H1 Math

H2 Math

IB AA HL Math

IB AA SL Math

IB AI HL Math

IB AI SL Math

IP Math

N(A) A Math

N(A) E Math

PSLE

<p>The line graph below shows the temperature (in °C) recorded at noon over a week in a city.</p>
<div class="content-block"><figure class="question-figure aligncenter" style="text-align: center;"><img src="https://vocwkpgapvksartxhhor.supabase.co/storage/v1/object/sign/question-images/pasted/1767772184081-8z1lw7pr1iw.png?token=eyJraWQiOiJiZTM3ZjNhZS05OWM4LTQ5ZGQtYjRiNS1iMTBhYmJhNjY5MWYiLCJhbGciOiJIUzI1NiJ9.eyJ1cmwiOiJxdWVzdGlvbi1pbWFnZXMvcGFzdGVkLzE3Njc3NzIxODQwODEtOHoxbHc3cHIxaXcucG5nIiwic2NvcGUiOiJkb3dubG9hZCIsImlhdCI6MTc5MjY2Mjc1MywiZXhwIjoxNzkyNjYzMDUzfQ.w4tPDB0-1bPjKTE5YoTUQZ4_VY5JotiRpC3Q6cAL8bk" style="max-width: min(400px, 100%); height: auto; display: block;" class="aligncenter custom-width" /></figure></div>
<ol class="abc-list"><li><div class="list-item-content"><span class="list-item-text">Calculate the average temperature over the week.</span></div></li><li><div class="list-item-content"><span class="list-item-text">What was the difference in temperature between the hottest and the coldest day?</span></div></li><li><div class="list-item-content"><span class="list-item-text">If a day is considered "hot" when the temperature is above <strong>25°C</strong>, what is the fraction of hot days?</span></div></li><li><div class="list-item-content"><span class="list-item-text">What is the trend of the temperature over the week? Describe whether it is increasing, decreasing or fluctuating.</span></div></li></ol>

The line graph below shows the temperature (in °C) recorded at noon over a week in a city.

Calculate the average temperature over the week.

What was the difference in temperature between the hottest and the coldest day?

If a day is considered "hot" when the temperature is above **25°C**, what is the fraction of hot days?

What is the trend of the temperature over the week? Describe whether it is increasing, decreasing or fluctuating.

Mean of Ungrouped Data

Median, Quartiles, Range and Interquartile Range

Line Graphs

Statistics

<p>A pictogram shows the number of apples sold at a fruit shop over a week. Each apple icon represents <strong>20</strong> apples.</p>
<div class="content-block"><figure class="question-figure aligncenter" style="text-align: center;"><img src="https://vocwkpgapvksartxhhor.supabase.co/storage/v1/object/sign/question-images/pasted/1767771932127-6b46vpiisn4.png?token=eyJraWQiOiJiZTM3ZjNhZS05OWM4LTQ5ZGQtYjRiNS1iMTBhYmJhNjY5MWYiLCJhbGciOiJIUzI1NiJ9.eyJ1cmwiOiJxdWVzdGlvbi1pbWFnZXMvcGFzdGVkLzE3Njc3NzE5MzIxMjctNmI0NnZwaWlzbjQucG5nIiwic2NvcGUiOiJkb3dubG9hZCIsImlhdCI6MTc5MjY2Mjc1MywiZXhwIjoxNzkyNjYzMDUzfQ.dZCAQIyMWMLZtFP4pB-15YVj9UbL_LUq3vLgwQ_p6HY" style="max-width: min(400px, 100%); height: auto; display: block;" class="aligncenter custom-width" /></figure></div>
<ol class="abc-list"><li><div class="list-item-content"><span class="list-item-text">Which two days have the same number of apples sold?</span></div></li><li><div class="list-item-content"><span class="list-item-text">Which day has the most number of apples sold?</span></div></li><li><div class="list-item-content"><span class="list-item-text">Calculate the average number of apples sold per day.</span></div></li><li><div class="list-item-content"><span class="list-item-text">What is the difference in the number of apples sold between the day with the highest sale and the day with the lowest sale?</span></div></li></ol>

A pictogram shows the number of apples sold at a fruit shop over a week. Each apple icon represents **20** apples.

Which two days have the same number of apples sold?

Which day has the most number of apples sold?

Calculate the average number of apples sold per day.

What is the difference in the number of apples sold between the day with the highest sale and the day with the lowest sale?

Pictograms

<p>In a class quiz, the average time taken by seven candidates to complete the quiz is 1 hour and 17 minutes. The table below shows the difference between the time taken by each candidate and the average time.</p>
<div class="content-block content-block--table"><div class="table-container"><table><thead><tr><th style="text-align: left; --cell-justify: flex-start">Candidates</th><th style="text-align: left; --cell-justify: flex-start">A</th><th style="text-align: left; --cell-justify: flex-start">B</th><th style="text-align: left; --cell-justify: flex-start">C</th><th style="text-align: left; --cell-justify: flex-start">D</th><th style="text-align: left; --cell-justify: flex-start">E</th><th style="text-align: left; --cell-justify: flex-start">F</th><th style="text-align: left; --cell-justify: flex-start">G</th></tr></thead><tbody><tr><td style="text-align: left; --cell-justify: flex-start">Difference (minutes)</td><td style="text-align: left; --cell-justify: flex-start">-8</td><td style="text-align: left; --cell-justify: flex-start">2</td><td style="text-align: left; --cell-justify: flex-start">-3</td><td style="text-align: left; --cell-justify: flex-start">-11</td><td style="text-align: left; --cell-justify: flex-start">$x$</td><td style="text-align: left; --cell-justify: flex-start">5</td><td style="text-align: left; --cell-justify: flex-start">13</td></tr></tbody></table></div></div>
<p>Find</p>
<ol class="abc-list"><li><div class="list-item-content"><span class="list-item-text">the value of $x$,</span></div></li><li><div class="list-item-content"><span class="list-item-text">the difference between the greatest and smallest time taken to complete the quiz,</span></div></li><li><div class="list-item-content"><span class="list-item-text">the average time taken to complete the quiz by candidate $C$, $D$ and $G$.</span></div></li></ol>

In a class quiz, the average time taken by seven candidates to complete the quiz is 1 hour and 17 minutes. The table below shows the difference between the time taken by each candidate and the average time.

the difference between the greatest and smallest time taken to complete the quiz,

the average time taken to complete the quiz by candidate $C$, $D$ and $G$.

Finding Unknowns from Averages and Spread

Applications of Negative Numbers in Real Life

Real Numbers

<p>The temperatures of a city during winter for a particular 5-day period were shown in the table below.</p>
<div class="content-block content-block--table"><div class="table-container"><table><thead><tr><th style="text-align: left; --cell-justify: flex-start">Monday</th><th style="text-align: left; --cell-justify: flex-start">Tuesday</th><th style="text-align: left; --cell-justify: flex-start">Wednesday</th><th style="text-align: left; --cell-justify: flex-start">Thursday</th><th style="text-align: left; --cell-justify: flex-start">Friday</th></tr></thead><tbody><tr><td style="text-align: left; --cell-justify: flex-start">$-4.0$ °C</td><td style="text-align: left; --cell-justify: flex-start">$1.5$ °C</td><td style="text-align: left; --cell-justify: flex-start">$2.0$ °C</td><td style="text-align: left; --cell-justify: flex-start">$-2.5$ °C</td><td style="text-align: left; --cell-justify: flex-start">$-1.5$ °C</td></tr></tbody></table></div></div>
<ol class="abc-list"><li><div class="list-item-content"><span class="list-item-text">List the days when the temperature fell below $-2$ °C.</span></div></li><li><div class="list-item-content"><span class="list-item-text">Find the average temperature during this period.</span></div></li><li><div class="list-item-content"><span class="list-item-text">Find the difference in temperature between Monday and Wednesday.</span></div></li></ol>

The temperatures of a city during winter for a particular 5-day period were shown in the table below.

List the days when the temperature fell below $-2$ °C.

Find the average temperature during this period.

Find the difference in temperature between Monday and Wednesday.

 Applications of Negative Numbers in Real Life

<div class="content-block content-block--table"><div class="table-container"><table style="table-layout: fixed; width: 500px;"><colgroup><col style="width: 50px;"><col style="width: 50px;"><col style="width: 50px;"><col style="width: 50px;"><col style="width: 50px;"><col style="width: 50px;"><col style="width: 50px;"><col style="width: 50px;"><col style="width: 50px;"><col style="width: 50px;"></colgroup><thead><tr><th style="text-align: center; --cell-justify: center"><p>$157$</p></th><th style="text-align: center; --cell-justify: center"><p>$171$</p></th><th style="text-align: center; --cell-justify: center"><p>$194$</p></th><th style="text-align: center; --cell-justify: center"><p>$166$</p></th><th style="text-align: center; --cell-justify: center"><p>$183$</p></th><th style="text-align: center; --cell-justify: center"><p>$149$</p></th><th style="text-align: center; --cell-justify: center"><p>$166$</p></th><th style="text-align: center; --cell-justify: center"><p>$160$</p></th><th style="text-align: center; --cell-justify: center"><p>$180$</p></th><th style="text-align: center; --cell-justify: center"><p>$160$</p></th></tr></thead><tbody><tr><td style="text-align: center; --cell-justify: center"><p>$183$</p></td><td style="text-align: center; --cell-justify: center"><p>$149$</p></td><td style="text-align: center; --cell-justify: center"><p>$169$</p></td><td style="text-align: center; --cell-justify: center"><p>$160$</p></td><td style="text-align: center; --cell-justify: center"><p>$194$</p></td><td style="text-align: center; --cell-justify: center"><p>$174$</p></td><td style="text-align: center; --cell-justify: center"><p>$177$</p></td><td style="text-align: center; --cell-justify: center"><p>$157$</p></td><td style="text-align: center; --cell-justify: center"><p>$174$</p></td><td style="text-align: center; --cell-justify: center"><p>$169$</p></td></tr></tbody></table></div></div>
<ol class="abc-list"><li><div class="list-item-paragraph">Represent the data above in a stem-and-leaf diagram.</div><div class="content-block list-item-image" style="text-align: center;"><img src="https://vocwkpgapvksartxhhor.supabase.co/storage/v1/object/sign/question-images/pasted/1765432423685-3w5tj6n819n.png?token=eyJraWQiOiJiZTM3ZjNhZS05OWM4LTQ5ZGQtYjRiNS1iMTBhYmJhNjY5MWYiLCJhbGciOiJIUzI1NiJ9.eyJ1cmwiOiJxdWVzdGlvbi1pbWFnZXMvcGFzdGVkLzE3NjU0MzI0MjM2ODUtM3c1dGo2bjgxOW4ucG5nIiwic2NvcGUiOiJkb3dubG9hZCIsImlhdCI6MTc5MjY2Mjc1MywiZXhwIjoxNzkyNjYzMDUzfQ.00K7LwTfjAdqRdEM9PLhKztRTzWCoFkMBxfo6Ahakls" alt="List item image" class="aligncenter custom-width" style="max-width: min(350px, 100%); height: auto;" /></div></li><li><div class="list-item-paragraph">For this distribution, find the</div><ol class="i-list"><li><div class="list-item-paragraph">median,</div></li><li><div class="list-item-paragraph">mode,</div></li><li><div class="list-item-paragraph">mean.</div></li></ol></li></ol>

Median

Mode

Stem-and-Leaf Diagrams

Height Distribution: Median, Mode, and Mean

<p>The masses of $12$ bags of apples are shown in the stem-and-leaf diagram below.</p>
<div class="content-block content-block--columns"><div class="question-columns question-columns--1-2" data-layout="1-2"><div class="question-column" style="flex: 1; align-self: flex-start;"><ol class="i-list"><li data-list-item-id="item-1779011851616-qo4p2b3x6"><div class="list-item-paragraph">Calculate the mean mass of the bags of apples.</div></li><li data-list-item-id="item-1779011852492-j3teys217"><div class="list-item-paragraph">Find the median mass of the bags of apples.</div></li></ol></div><div class="question-column" style="flex: 2; align-self: flex-start;"><div class="content-block"><figure class="question-figure alignright" style="text-align: right;"><img src="https://vocwkpgapvksartxhhor.supabase.co/storage/v1/object/sign/question-images/pasted/1765431843645-nlnblmyly1q.png?token=eyJraWQiOiJiZTM3ZjNhZS05OWM4LTQ5ZGQtYjRiNS1iMTBhYmJhNjY5MWYiLCJhbGciOiJIUzI1NiJ9.eyJ1cmwiOiJxdWVzdGlvbi1pbWFnZXMvcGFzdGVkLzE3NjU0MzE4NDM2NDUtbmxuYmxteWx5MXEucG5nIiwic2NvcGUiOiJkb3dubG9hZCIsImlhdCI6MTc5MjY2Mjc1MywiZXhwIjoxNzkyNjYzMDUzfQ.ehBZPi0yIyP7x3Xyg1LMjb-LWo8azAPDQGosXT5K73M" style="max-width: min(350px, 100%); height: auto; display: block;" class="alignright custom-width" /></figure></div></div></div></div>

The masses of $12$ bags of apples are shown in the stem-and-leaf diagram below.

Apple Bag Masses: Mean and Median Calculation

<p>The height of $12$ students in a class was measured. The information is displayed in the stem and leaf diagram below.</p>
<div class="content-block content-block--columns"><div class="question-columns question-columns--2" data-layout="2"><div class="question-column" style="flex: 1; align-self: flex-start;"><p>Find</p><ol class="abc-list"><li><div class="list-item-paragraph">the mode,</div></li><li><div class="list-item-paragraph">the median,</div></li><li><div class="list-item-paragraph">the mean of the heights.</div></li></ol></div><div class="question-column" style="flex: 1; align-self: flex-start;"><div class="content-block"><figure class="question-figure alignright" style="text-align: right;"><img src="https://vocwkpgapvksartxhhor.supabase.co/storage/v1/object/sign/question-images/pasted/1765426064806-tpl1w0a9ua.png?token=eyJraWQiOiJiZTM3ZjNhZS05OWM4LTQ5ZGQtYjRiNS1iMTBhYmJhNjY5MWYiLCJhbGciOiJIUzI1NiJ9.eyJ1cmwiOiJxdWVzdGlvbi1pbWFnZXMvcGFzdGVkLzE3NjU0MjYwNjQ4MDYtdHBsMXcwYTl1YS5wbmciLCJzY29wZSI6ImRvd25sb2FkIiwiaWF0IjoxNzkyNjYyNzUzLCJleHAiOjE3OTI2NjMwNTN9.6iBQO1sdjwdZ-tYdFMcRPeU8f9eAk-WZIP0wo4BwixQ" style="max-width: min(230px, 100%); height: auto; display: block;" class="alignright custom-width" /></figure></div></div></div></div>

The height of $12$ students in a class was measured. The information is displayed in the stem and leaf diagram below.

Analyzing Student Heights: Mode, Median, and Mean

<p>The following set of data shows the average number of hours spent on social media by a group of $20$ students in a week during the holidays.</p>
<div class="content-block content-block--table"><div class="table-container"><table style="table-layout: fixed; width: 350px;"><colgroup><col style="width: 70px;"><col style="width: 70px;"><col style="width: 70px;"><col style="width: 70px;"><col style="width: 70px;"></colgroup><thead><tr><th style="text-align: center; --cell-justify: center"><p>$8$</p></th><th style="text-align: center; --cell-justify: center"><p>$3$</p></th><th style="text-align: center; --cell-justify: center"><p>$9$</p></th><th style="text-align: center; --cell-justify: center"><p>$24$</p></th><th style="text-align: center; --cell-justify: center"><p>$12$</p></th></tr></thead><tbody><tr><td style="text-align: center; --cell-justify: center"><p>$16$</p></td><td style="text-align: center; --cell-justify: center"><p>$12$</p></td><td style="text-align: center; --cell-justify: center"><p>$30$</p></td><td style="text-align: center; --cell-justify: center"><p>$13$</p></td><td style="text-align: center; --cell-justify: center"><p>$8$</p></td></tr><tr><td style="text-align: center; --cell-justify: center"><p>$5$</p></td><td style="text-align: center; --cell-justify: center"><p>$6$</p></td><td style="text-align: center; --cell-justify: center"><p>$15$</p></td><td style="text-align: center; --cell-justify: center"><p>21</p></td><td style="text-align: center; --cell-justify: center"><p>$25$</p></td></tr><tr><td style="text-align: center; --cell-justify: center"><p>$13$</p></td><td style="text-align: center; --cell-justify: center"><p>$19$</p></td><td style="text-align: center; --cell-justify: center"><p>$12$</p></td><td style="text-align: center; --cell-justify: center"><p>$5$</p></td><td style="text-align: center; --cell-justify: center"><p>$18$</p></td></tr></tbody></table></div></div>
<ol class="abc-list"><li><div class="list-item-paragraph">Complete the following stem-and-leaf diagram to represent the above data.</div><div class="content-block list-item-image" style="text-align: center;"><img src="https://vocwkpgapvksartxhhor.supabase.co/storage/v1/object/sign/question-images/pasted/1769853279608-odi2s0x1m.png?token=eyJraWQiOiJiZTM3ZjNhZS05OWM4LTQ5ZGQtYjRiNS1iMTBhYmJhNjY5MWYiLCJhbGciOiJIUzI1NiJ9.eyJ1cmwiOiJxdWVzdGlvbi1pbWFnZXMvcGFzdGVkLzE3Njk4NTMyNzk2MDgtb2RpMnMweDFtLnBuZyIsInNjb3BlIjoiZG93bmxvYWQiLCJpYXQiOjE3OTI2NjI3NTMsImV4cCI6MTc5MjY2MzA1M30.n7yCMNJ1TwQywtU2oSbTMODhQDRU8U8aEku8XEFZKvM" alt="List item image" class="aligncenter custom-width" style="max-width: min(350px, 100%); height: auto;" /></div></li><li><div class="list-item-paragraph">Find the mean number of hours spent on social media.</div></li></ol>

The following set of data shows the average number of hours spent on social media by a group of $20$ students in a week during the holidays.

Hours Spent on Social Media by Students

<p>The height of $14$ students in a class was measured. The information is displayed in the stem and leaf diagram below.</p>
<div class="content-block content-block--columns"><div class="question-columns question-columns--2" data-layout="2"><div class="question-column" style="flex: 1; align-self: flex-start;"><p>Find mean of the heights of the students.</p></div><div class="question-column" style="flex: 1; align-self: flex-start;"><div class="content-block"><figure class="question-figure alignright" style="text-align: right;"><img src="https://vocwkpgapvksartxhhor.supabase.co/storage/v1/object/sign/question-images/pasted/1765356921454-7j9jztqcfjw.png?token=eyJraWQiOiJiZTM3ZjNhZS05OWM4LTQ5ZGQtYjRiNS1iMTBhYmJhNjY5MWYiLCJhbGciOiJIUzI1NiJ9.eyJ1cmwiOiJxdWVzdGlvbi1pbWFnZXMvcGFzdGVkLzE3NjUzNTY5MjE0NTQtN2o5anp0cWNmancucG5nIiwic2NvcGUiOiJkb3dubG9hZCIsImlhdCI6MTc5MjY2Mjc1MywiZXhwIjoxNzkyNjYzMDUzfQ.mAvPJZq3XOKR_wikzEGICG-_TnJ6BR3weAIxtBHbxqI" style="max-width: min(230px, 100%); height: auto; display: block;" class="alignright custom-width" /></figure></div></div></div></div>

The height of $14$ students in a class was measured. The information is displayed in the stem and leaf diagram below.

Calculating the Mean Height from a Stem-and-Leaf Diagram

<p>The scores of $10$ students in a History test are $54$, $89$, $71$, $64$, $55$, $83$, $72$ , $68$, $70$ and $63$.</p>
<p>Find the mean score of the students.         </p>

The scores of $10$ students in a History test are $54$, $89$, $71$, $64$, $55$, $83$, $72$ , $68$, $70$ and $63$.

Find the mean score of the students.         

Mean Score of Students in a History Test

<p>The heights of $8$ students are $1.57$m, $1.66$ m, $1.79$ m, $1.59$ m, $1.63$m, $1.73$m, $1.73$m and $1.82$m.</p>
<p>Find the mean height of the students. </p>

The heights of $8$ students are $1.57$m, $1.66$ m, $1.79$ m, $1.59$ m, $1.63$m, $1.73$m, $1.73$m and $1.82$m.

Finding the Mean Height of Students

<p>The prices of $7$ mathematics books, in $\$$, are $\$12.80$, $\$15.70$, $\$17.20$, $\$23.20$, $\$17.70$, $\$21.70$ and $\$19.80$.</p>
<p>Calculate the mean price of the books.</p>

The prices of $7$ mathematics books, in $\$$, are $\$12.80$, $\$15.70$, $\$17.20$, $\$23.20$, $\$17.70$, $\$21.70$ and $\$19.80$.

<p style="margin-top: 1rem">The table shows the temperature of six cities at midnight on a particular day.</p>
<div class="table-container"><table><thead><tr><th>City</th><th>Stockholm</th><th>Nuuk</th><th>Toronto</th><th>Wellington</th><th>Singapore</th><th>Reykjavík</th></tr></thead><tbody><tr><td>Temperature $\left( {}^\circ \mathrm{C} \right)$</td><td>$-4\mathrm{ }{}^\circ \mathrm{C}$</td><td>$-8\mathrm{ }{}^\circ \mathrm{C}$</td><td>$9\mathrm{ }{}^\circ \mathrm{C}$</td><td>$14\mathrm{ }{}^\circ \mathrm{C}$</td><td>$\mathrm{24 }{}^\circ \mathrm{C}$</td><td>$-5\mathrm{ }{}^\circ \mathrm{C}$</td></tr></tbody></table></div>
<ol class="abc-list"><li><div class="list-item-paragraph">List down all six cities in the ascending order of their temperature.

</div></li><li><div class="list-item-paragraph">Find the difference between the greatest temperature and smallest temperature.</div></li><li><div class="list-item-paragraph">Find the average temperature of Stockholm, Nuuk and Singapore.

</div></li></ol>

The table shows the temperature of six cities at midnight on a particular day.

[EPQ Vol 1A] Question 8

<p>The line graph below shows Ben’s and John’s savings over a period of $6$ months.</p>
<p>Use the information provided to answer each of the following questions.</p>
<div class="content-block"><figure class="question-figure aligncenter" style="text-align: center;"><img src="https://vocwkpgapvksartxhhor.supabase.co/storage/v1/object/sign/question-images/pasted/1764467719897-rna8qxnbkt.png?token=eyJraWQiOiJiZTM3ZjNhZS05OWM4LTQ5ZGQtYjRiNS1iMTBhYmJhNjY5MWYiLCJhbGciOiJIUzI1NiJ9.eyJ1cmwiOiJxdWVzdGlvbi1pbWFnZXMvcGFzdGVkLzE3NjQ0Njc3MTk4OTctcm5hOHF4bmJrdC5wbmciLCJzY29wZSI6ImRvd25sb2FkIiwiaWF0IjoxNzkyNjYyNzUzLCJleHAiOjE3OTI2NjMwNTN9.vk7W3J81Qdefbij4jgWrxtBb2lKPCk-IWFUjIPHR9vA" style="max-width: min(400px, 100%); height: auto; display: block;" class="aligncenter custom-width" /></figure></div>
<ol class="abc-list"><li><div class="list-item-paragraph">Calculate Ben’s average savings for the $6$ months.</div></li><li><div class="list-item-paragraph">If John gets an allowance of $\$4.50$ a day, calculate the amount of money John spent per day in May. Give your answer to the nearest $10$ cents. (Take $1$ month$=31$ days)</div></li><li><div class="list-item-paragraph">In July, John saved $\frac{3}{5}$ as much as he saved in February, while Ben saved $15\%$ less than the amount he saved in April.</div><ol class="i-list"><li><div class="list-item-paragraph">Calculate the amount John saved in July.</div></li><li><div class="list-item-paragraph">Calculate the amount Ben saved in July.</div></li><li><div class="list-item-paragraph">Find their total savings in July.</div></li></ol></li></ol>

The line graph below shows Ben’s and John’s savings over a period of $6$ months.

Use the information provided to answer each of the following questions.

Percentage Increase and Decrease

Line Graph of Monthly Savings: Ben vs John

Percentages

<p>The line graph below shows the change in body temperature of a male patient from $8.00$ am to $11$ pm.  The temperatures are taken every $3$ hours. The normal temperature of a person is approximately $37{}^\circ \mathrm{C}$.</p>
<div class="content-block"><figure class="question-figure aligncenter" style="text-align: center;"><img src="https://vocwkpgapvksartxhhor.supabase.co/storage/v1/object/sign/question-images/pasted/1764466324545-xrqoyqagmu.png?token=eyJraWQiOiJiZTM3ZjNhZS05OWM4LTQ5ZGQtYjRiNS1iMTBhYmJhNjY5MWYiLCJhbGciOiJIUzI1NiJ9.eyJ1cmwiOiJxdWVzdGlvbi1pbWFnZXMvcGFzdGVkLzE3NjQ0NjYzMjQ1NDUteHJxb3lxYWdtdS5wbmciLCJzY29wZSI6ImRvd25sb2FkIiwiaWF0IjoxNzkyNjYyNzUzLCJleHAiOjE3OTI2NjMwNTN9.sotkKLemUgO0FUuE6-Z1F7mt77XjNKrHl_vAPrSyiP8" style="max-width: min(400px, 100%); height: auto; display: block;" class="aligncenter custom-width" /></figure></div>
<ol class="abc-list"><li data-list-item-id="item-1764466329994-09ci9wr1w" data-list-item-path="item-1764466329994-09ci9wr1w"><div class="list-item-paragraph">State the period of decline of his temperature till it reaches normal.</div></li><li data-list-item-id="item-1764466330518-783brbg7o" data-list-item-path="item-1764466330518-783brbg7o"><div class="list-item-paragraph">State which is the $3$ hours period of highest increase in the temperature and state the 	percentage increase in the numerical Celsius reading.</div></li><li data-list-item-id="item-1764466331044-3v7c3zk79" data-list-item-path="item-1764466331044-3v7c3zk79"><div class="list-item-paragraph">Calculate the mean of the six recorded temperatures from $8$ am to $11$ pm.</div></li></ol>

The line graph below shows the change in body temperature of a male patient from $8.00$ am to $11$ pm.  The temperatures are taken every $3$ hours. The normal temperature of a person is approximately $37{}^\circ \mathrm{C}$.

Line Graph Showing Body Temperature Changes in a Patient

<p>The bar graph shows the number of muffins Mrs Leong sold in a particular week.</p>
<div class="content-block"><figure class="question-figure aligncenter" style="text-align: center;"><img src="https://vocwkpgapvksartxhhor.supabase.co/storage/v1/object/sign/question-images/pasted/1764410029481-6a4jyude9mt.png?token=eyJraWQiOiJiZTM3ZjNhZS05OWM4LTQ5ZGQtYjRiNS1iMTBhYmJhNjY5MWYiLCJhbGciOiJIUzI1NiJ9.eyJ1cmwiOiJxdWVzdGlvbi1pbWFnZXMvcGFzdGVkLzE3NjQ0MTAwMjk0ODEtNmE0anl1ZGU5bXQucG5nIiwic2NvcGUiOiJkb3dubG9hZCIsImlhdCI6MTc5MjY2Mjc1MywiZXhwIjoxNzkyNjYzMDUzfQ.uOgRfh34OWUJfB_iezRDak6Qs7uZbhmFjBKYHyIE9i0" style="max-width: min(450px, 100%); height: auto; display: block;" class="aligncenter custom-width" /></figure></div>
<ol class="abc-list"><li><div class="list-item-paragraph">The number of muffins sold on Wednesday was $\frac{3}{5}$ of the number of muffins sold on Saturday. Calculate the number of muffins sold on Saturday.</div></li><li><div class="list-item-paragraph">Complete the bar graph.</div></li><li><div class="list-item-paragraph">On which days of the week was there a drop in the sales of the muffins as compared to the previous day?</div></li><li><div class="list-item-paragraph">Find the average number of muffins sold over the $6$ days.</div></li></ol>

The bar graph shows the number of muffins Mrs Leong sold in a particular week.

Bar Graphs

Bar Graph: Muffin Sales Over a Week

<p>The pictogram shows the number of goals scored by a soccer team for the past $5$ years.</p>
<div class="content-block"><figure class="question-figure aligncenter" style="text-align: center;"><img src="https://vocwkpgapvksartxhhor.supabase.co/storage/v1/object/sign/question-images/pasted/1764408571903-bdkupukddbi.png?token=eyJraWQiOiJiZTM3ZjNhZS05OWM4LTQ5ZGQtYjRiNS1iMTBhYmJhNjY5MWYiLCJhbGciOiJIUzI1NiJ9.eyJ1cmwiOiJxdWVzdGlvbi1pbWFnZXMvcGFzdGVkLzE3NjQ0MDg1NzE5MDMtYmRrdXB1a2RkYmkucG5nIiwic2NvcGUiOiJkb3dubG9hZCIsImlhdCI6MTc5MjY2Mjc1MywiZXhwIjoxNzkyNjYzMDUzfQ.AX6_bY89LoAB3bzd6xmi079ygQpn_AhM9qaAibri0Gk" style="max-width: min(300px, 100%); height: auto; display: block;" class="aligncenter custom-width" /></figure></div>
<ol class="abc-list"><li data-list-item-id="item-1764408584304-itcmgbpb0" data-list-item-path="item-1764408584304-itcmgbpb0"><div class="list-item-paragraph">How many goals were scored in year $2018$?</div></li><li data-list-item-id="item-1764408584994-321taniby" data-list-item-path="item-1764408584994-321taniby"><div class="list-item-paragraph">How many more goals were scored in $2021$ than in $2020$?</div></li><li data-list-item-id="item-1764408586449-t4hbgvy69" data-list-item-path="item-1764408586449-t4hbgvy69"><div class="list-item-paragraph">What is the average number of goals the team scored per year for the past $5$ years?<br><br></div></li></ol>

The pictogram shows the number of goals scored by a soccer team for the past $5$ years.

<p>The product of the ages of Mrs Lee and her three children is $5180$. If none of her children differ by more than $3$ years in age, find the average of the ages of Mrs Lee and her children.</p>
<p>For the intended age model, take all ages as positive whole numbers of years, with Mrs Lee older than her children and younger than 100.</p>

The product of the ages of Mrs Lee and her three children is $5180$. If none of her children differ by more than $3$ years in age, find the average of the ages of Mrs Lee and her children.

For the intended age model, take all ages as positive whole numbers of years, with Mrs Lee older than her children and younger than 100.

Math Question Bank