Simple & Compound Interest, Growth & Decay Practice Questions

Question 1

3 marks

Do not use a calculator for this question.

Aisha invests £750 in a savings account.
The account pays simple interest at a rate of 2% per year.

(a)

Work out the interest Aisha gets at the end of one year.

(b)

Work out the total amount in Aisha's account at the end of 6 years.

Question 2

3 marks

You may use a calculator for this question.

Owen invests £800 for 3 years in a savings account.
The account pays compound interest at a rate of 2% per annum.

Work out the total amount in Owen's account at the end of 3 years.

£ ...........................................

Question 3

3 marks

You may use a calculator for this question.

A charity invests £15 000 for 4 years in an account paying compound interest at a rate of 1.8% per annum.

Calculate the total amount of interest the charity will receive at the end of the 4 years.

£ ...........................................

Question 4

3 marks

You may use a calculator for this question.

A builder buys a new van for £18 500.

The value of the van depreciates at a rate of 15% per year.

Work out the value of the van at the end of 3 years.

£ ...........................................

Question 5

3 marks

You may use a calculator for this question.

Priya invests £5200 for 3 years in an account paying compound interest.

For each of the first 2 years, the rate of interest is 2% per annum.
In the third year, the rate of interest is 3.5%

Work out the value of Priya's investment at the end of 3 years.

£ ...........................................