In 2023, the amount of waste recycled in Singapore was 3.553 million tonnes. The amount of waste disposed in Singapore was 3.3064 million tonnes.
How much more waste, in tonnes, was recycled than disposed in Singapore in 2023? Write the difference in standard form, correct to three significant figures.[2]
The amount of waste recycled in Singapore in 2020 was 3.040 million tonnes. Calculate the percentage increase in the amount of waste recycled from 2020 to 2023.[2]
From 2022 to 2023, the amount of waste recycled in Singapore decreased by 15.2%. Calculate the amount of waste recycled, in tonnes, in 2022.[2]
The cash price of a new car is $120 000.
Jason buys the car on hire purchase. He pays a deposit of 20% of the cash price. He then makes 84 monthly payments of $1400. What is the total amount that Jason pays for the car?[2]
The original value of the car is its cash price of $120 000. Each year, the value of the car decreases by 15% of its value at the start of the year. Calculate the overall percentage decrease in the value of the car compared with its original value after 5 years.[2]
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Answer:(a)(i) \(2.47\times10^5\) tonnes (ii) \(16.9\%\) (iii) \(4.19\times10^6\) tonnes (b)(i) \(\$141600\) (ii) \(55.6\%\)