SSC GD 2023 PYQ — Question 53

SSC GD Constable (English) - 24 Jan 2023 - Shift 1 • Quantitative Aptitude • Q53

A man saves 25% of his monthly income. Due to a 20% increase in his income, his expenditure also increases by 20%. Now he can save Rs.1,500 per month. Find his original monthly income.

Show answer & explanation

Correct answer: D

Explanation

The correct answer is option 4 i.e. Rs.5,000

Let a man monthly income be 100 units

Given that

He saves 25 % of his income means 25 units

Then his expenditures = 100 - 25 = 75 units

Now, his income increases by 20% means 120 units

His expenditure also increases by 20% means 75 × 1.2 = 90 units

Then his savings = 120 - 90 = 30 units

According to the question

30 units = 1500 Rs

1 unit = 1500/30 = 50 Rs

Hence his original monthly income = 100 units = 100 × 50 Rs = 5000 Rs