Question

A boy spends 3/4 of his pocket money and then 4/5 of the reminder is given to his sister.If he has ₹40 left, what did he have first?

Answer 1

Answer:

he has ₹800 first

Step-by-step explanation:

after spending 3/4 of his pocket money, the reminder money = 1 - 3/4 = 1/4

given to sister = 4/5 × 1/4 = 1/5

now money left = 1/4 - 1/5 = 1/20 = ₹40 (given)

=> 1 part = ₹40 ÷ 1/20 = ₹40 × 20 = ₹800