Question

solve question 14 and 15​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

ans 14
no. of english books = 96
no. of hindi books = 240
no. of maths books = 336

no. of books in each stack = hcf of 96, 240, 336
= 48

no. of stacks of english book = 96 /48 = 2
of hindi book = 240/48 = 5
of maths book = 336/ 48 = 7

ans 15

let age of a be "x" and b be 'y'

then x-y = 2-------(1)
age of a father = 2x

age of b sister = y/2

a/q

2x-y/2 = 40

4x-y = 80-------(2)

on solving (1) &(2)
x = 26 , y= 24
hence age of a=26 &b =24