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PSLE Foundation Mathematics

Eddy borrowed a sum of money at a compound interest of $5\%$ per annum.
After $3$ years, he owed a total amount of $\$2315.25.$
Calculate how much he borrowed.

Eddy borrowed a sum of money at a compound interest of $5\%$ per annum.

After $3$ years, he owed a total amount of $\$2315.25.$

Finding Principal or Rate from Compound Interest

Finding the Loan Principal from Compound Interest and Final Amount

Standard Form and Compound Interest

A sum of $\$25000$ was loaned from a bank that charges $r\%$ interest per year, compounded yearly. 
If after $3$ years, an amount of $\$28121.60$ was paid up to settle the loan, calculate $r$.

A sum of $\$25000$ was loaned from a bank that charges $r\%$ interest per year, compounded yearly.  

If after $3$ years, an amount of $\$28121.60$ was paid up to settle the loan, calculate $r$.

Finding the Interest Rate from a Compound Interest Loan

Darius invested some money in a savings account for&nbsp;$2$years.
The rate of compound interest was fixed at $10\%$ per annum compounded half-yearly.
At the end of the $2$ years there was $\$9724.05$ in his account.
How much did he invest in the account?

Darius invested some money in a savings account for $2$years.

The rate of compound interest was fixed at $10\%$ per annum compounded half-yearly.

At the end of the $2$ years there was $\$9724.05$ in his account.

Finding the Principal from Compound Interest (Half-Yearly)

Sam invested a sum of money into a savings account at an interest rate $4\%$ per annum, compounded yearly. 
Find the sum of money he invested if there was $\$16\mathrm{}872.96$ in his account at the end of $3$ years.

Sam invested a sum of money into a savings account at an interest rate $4\%$ per annum, compounded yearly.  


Find the sum of money he invested if there was $\$16\mathrm{}872.96$ in his account at the end of $3$ years.

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