Compound & Simple Interest

Question 1:

Increase £3100 by 7% over 9 years using simple interest.

£5053

Question 2:

Increase £4200 by 11% over 5 years using simple interest.

£6510

Question 3:

Increase £3400 by 7% over 7 years using simple interest.

£5066

Question 4:

Increase £1500 by 43% over 4 years using compound interest.

£6272.42