Question

A boy spends 3/4 of his pocket money and then 4/5 of the remainder he gives to his sister. If he has Rs. 40 left, what did he have at first?

Answer 1

Answer:

800 rupees

Step-by-step explanation:

let pocket money be = x

X-3/4x is amount remaining with him after spending money.

X-3/4x = x/4 (on solving)

now he gave 4/5 of remaining amount to his sister.

= x/4 - 4/5 of x/4

= x/4 - x/5

= x/20

amount remaining with him is =40

x/20=40

x=800

his pocket money is 800