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SSC Selection Post 2022 PYQ — Question 73

SSC Selection Post - Matriculation Level 2022 - 9 Feb 2022 - Shift 1 • Quantitative Aptitude • Q73

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A certain sum amounts to ₹15,179 in 812\frac{1}{2} years at 9% p.a. simple interest. What will be the simple interest (in ₹) on the same sum in 512\frac{1}{2} years at the same rate of interest? 

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Correct answer: B

Explanation

The correct answer is Option 2 i.e. 4,257.

SI = PRT100PRT\over100

⇒ 15179 = P + P×9×17200P\times9\times17\over200

⇒ 15179 = 353P200353P\over200

⇒ P = 8600

SI = 8600×9×112008600\times9\times11\over200 = ₹4257