Compound & Simple Interest

Question 1:

Increase £1700 by 5% over 9 years using simple interest.

£2465

Question 2:

Increase £3100 by 5% over 5 years using compound interest.

£3956.47

Question 3:

Decrease £4000 by 22% over 4 years using simple interest.

£480

Question 4:

Decrease £4000 by 25% over 7 years using compound interest.

£533.94