Question

510 exercise books were shared among schools X, Y and Z such that Z had 3/2 times as mach as Y; and Y had 3 times as mach as X. Express X's share as a percentage of the total

Answer 1

let no of books of X be x. then no of books of Y are 3x and of Z are 3/2*3x. Given 3x+9/2x+x=510. so x= 60. no of books of X=60. percentage=60/510*100= . 11.76470588235294%