Percentages test questions

1

Calculate the interest earned on £420 when it is put in an account which pays an interest rate of 7% per year.

2

Debbie puts £45 into an account which pays simple interest at a rate of 5.2%.

How much money would she have after 3 years?

3

A sum of £1640 is invested in a bank. The rate of interest is 4.5% per annum. Calculate the simple interest gained in 9 months.

4

Sam invests £600 into a saving account which has an interest rate of 2% pa (per annum).

Calculate the compound interest he will receive if he leaves the money untouched for 4 years.

(Round to the nearest penny).

5

Calculate the compound interest gained on £1600 invested for 3 years at 1.7%.

6

A house costs £102,600 after an 8% increase in house prices. What was the original cost of the house?

7

Farida buys a car costing £7500. It depreciates in value each year by 7%.

By how much had the car depreciated after 2 years? (Round to the nearest penny).

8

It is estimated that an iceberg weighs 84000 tonnes.

As the iceberg moves into warmer water, its weight decreases by 25% each day.

What will the iceberg weigh after 3 days in the warmer water?

(Give your answer correct to 2 significant figures).

9

In a test, Jennifer scored 11 out of 25.

Calculate her percentage mark.

10

The cost of a toaster is £25 (excluding VAT). If VAT is calculated at 20%, calculate the price of the toaster including VAT.