Anthony made 5 of his first 12 free throw attempts. If he makes 2/3 of his next 24 attempts, by how many percentage points will he increase his overall success rate percentage? Express your answer to the nearest whole number.

Answer 1

2/3 of 24 = 16
(5+16)/(12+24) = 21/36 = 7/12
7/12 - 5/12 = 1/6
so his %age will increase by 16.67 or about 17 points

that is an increase of 7/5 or 40%