Bilal spends 45% of his monthly income on household items, 25% of his monthly income on buying cloths, 7.5% of his monthly income on medicines and saves the remaining amount which is Rs. 9000. Find his monthly income.

A. Rs. 40000
B. Rs. 36000
C. Rs. 50000
D. Rs. 45000
E. None of these

Explanation:

Let the monthly income of Ajay be Rs. x

Savings of Ajay = x – (45 + 25 + 7.5)/100 * x = 22.5/100 x
22.5/100 x = 9000
x = 40000.