Question

A scored 15% more marks than b's what percent less marks did b score than that of a's?

Answer 1

• Let b's score be x .
• a's score = 115 x/100 = 23 x / 20

B is less than a = 23x/20 - x = 3x /20

So less % = 3x / 20 ×  20/23 x  × 100  = 300 / 23 %

Answer 2

answer is 23% .......
let b score =115 /100
23/20
23/20×20 =23%