Question

From the salary of an officer, 10% is deducted as house rent, 15% the rest he spends on children’s education and 10% of the balance, he spends on clothes. After this expenditure he is left with Rs 1377. His salary is:

• A. Rs 2000
• B. Rs 2040
• C. Rs 2100
• D. Rs 2200

Answer 1

The correct option is A Rs 2000

Suppose that his salary = Rs 100
House rent = Rs 10, balance = Rs 90
Expenditure on education $=Rs(\frac{15}{100}\times 90)=Rs.13.50$
Balance = Rs 76.50
Expenditure on clothes $=Rs(\frac{10}{100}\times 76.50)=Rs.7.65$
Balance now = Rs 68.85
If balance is Rs 68.85, salary = Rs 100
If balance is Rs 1377, salary $=Rs\frac{100}{68.85}\times 1377$ = Rs 2000.