Question

A boy's weight increased by 15% between his fifteenth and sixteenth birthdays. If he weighed 55kg on his fifteenth birthday, what did he weigh on his sixteenth birthday?​

Answer 1

63.25 KG

Explanation:

Convert 15% to a decimal, then add 1 and multiply 15.

`55 * (1 + 0.15) = 63.25`