Question

Alan's hair was 15 centimeters long after his last haircut, and it grows 7 centimeters every year. How many years will it take until Alan's hair is 43 centimeters long?​

Answer 1

4 years

Explanation:

After his haircut he has 15 centimetres of hair, this is our origin. If we take 15 + 7 and multiply it by 4 then our answer would be 43