SSC CHSL 2021 PYQ — Question 68

SSC CHSL - 19 April 2021 - Shift 2 • Quantitative Aptitude • Q68

Savita spends 20% of her monthly income on groceries, 15% of the remaining on rent and then 60% of the left over on children's education and others. If she saves Rs. 9,792 a month, then how much (in Rs.) does she spend on rent?

Show answer & explanation

Correct answer: D

Explanation

The correct answer is option 4 i.e. 4,320

Explanation:

Let the salary of Savita be 100x.

According to the given question,

Expenditure on groceries = 20% of 100x = 20x

Remaining salary = 100x - 20x = 80x

Expenditure on rent = 15% of 80x = 12x 

Remaining salary = 80x - 12x = 68x

Expenditure on children's education and others = 60% of 68x = 40.8x

Remaining salary = 68x - 40.8x = 27.2x 

Savings = 27.2x = 9,792

⇒ x = 360

Now, expenditure on rent = 12x = 12 × 360 = 4320

Hence the required answer is Rs. 4320.