SSC GD 2019 PYQ — Question 54

SSC GD Constable (English) - 1 March 2019 Shift 1 • Quantitative Aptitude • Q54

The compound interest on an amount for 2 years at 5% per annum compounded annually is Rs. 205. The simple interest is :

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Correct answer: C

Explanation

The correct answer is option 3 i.e. Rs. 200.

P = Principal

SI = Principal × Rate × Time/100

Compound interest = P{(1 + r/100)n - 1}

⇒ 205 = P{(1 + 5/100)2 - 1}

⇒ 205 = P{441/400​​​​​​​ - 1}

⇒ 205 = P{(41/400}

⇒ P = 2000

S.I = 2000 × 5 × 2/100 = 200