SSC GD Constable 2021 · Question 164 of 377

How much time will it take for a sum of ₹ 900 to yield ₹ 810 as interest at 5% per annum of simple interest?

percentage

A15 years
B16 years
C10 years
D18 yearsCorrect

Answer: D. 18 years

Explanation

Given: Sum = 900 Interest = 810 Rate = 5% Formula used: S.I = (P × T × R)/100 Here, P = Sum T = Time R = Rate Calculation: Let the time needed to be T years Now, 810 = (900 × 5 × T)/100 ⇒ 45T = 810 ⇒ T = 810/45 ⇒ T = 18 So, time = 18 years ∴ Required time is 18 years.

Source: SSC GD Constable 2021 Prev. Year Paper (2021-11-23 Shift 1) English — Prepp (with solutions) · reliable-secondary

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