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SSC Selection Post 2020 PYQ — Question 52

SSC Selection Post - Matriculation Level 2020 - 6 Nov 2020 - Shift 1 • Quantitative Aptitude • Q52

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A sum of money was put at simple interest at x% p.a. for 3 years. Had it been at (x + 1)% p.a., it would have fetched ₹48 more. The sum (in ₹) is:

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Correct answer: D

Explanation

The correct answer is option 4 i.e. ₹1600.

Let sum = S

Difference in interest = ₹48

Rate difference = 1%

Time = 3 years

⇒ S×1×3100=48\frac{S \times 1 \times 3}{100} = 48

⇒ 3S100=48\frac{3S}{100} = 48

⇒ S=48×1003=1600S = \frac{48 \times 100}{3} = {1600}