Question

A man spends 30% of his income in board and lodging, 25% of the remainder in other personal necessities and 20% of the rest in charity. If his income is Rs. 25000, find the amount left by him at the end.

Answer 1

income =25000
board and lodging=25000*30/100

now he is having=25000-7500
=17500
personal necessitities =17500*25/100
=4375
now he has=17500-4375
=13125
Chastity= 13125*20/100
=2625
now he has=13125-2625
=10500

hope it helps