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SSC CHSL 2024 PYQ — Question 64

SSC CHSL - 04 July 2024 - Shift 3 • Quantitative Aptitude • Q64

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Last year, Geeta's monthly salary was ₹12,000 and Seeta's monthly salary was 10,000. This year, Geeta's monthly salary is 14,400, while Seeta's monthly salary is ₹12,500. If the percentage increase in Seeta's monthly salary this year over her monthly salary last year is denoted by x%, and the percentage increase in Geeta's monthly salary this year over her monthly salary last year is denoted by y%, then what is the value of (x−yy×100)%(\frac{x-y}{y}\times 100)\%?

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Correct answer: D

Explanation

The correct answer is Option 4 i.e. 25.

Last year, Geeta's monthly salary = ₹12,000, and

This year, Geeta's monthly salary = ₹14,400

Last year, Seeta's monthly salary = 10,000, and

This year, Seeta's monthly salary = ₹12,500

Now,

Percentage increase = (New salary - Old salary)/Old salary × 100

Geeta's percentage increase = (14400 - 12000)/12000 × 100

⇒ 2400/12000 × 100 = 20%

Now,

Seeta's percentage increase = (12500 - 10000)/10000 × 100

⇒ 2500/10000 × 100 = 25%

So,

Required value = (25 - 20)/20 × 100

⇒ 5/20 × 100 = 25%