SSC CHSL 2022 · PYQ · Compound Interest · medium
At a certain rate of interest compounded annually, a sum amounts to ₹10,890 in 2 years and to ₹11,979 in 3 years. The sum is:
Answer
The correct answer is C: ₹9,000. Rate = (11979−10890)/10890 × 100 = 1089/10890 × 100 = 10%. So principal = 10890/(1.1)² = 10890/1.21 = ₹9,000.
- A.₹8,000
- B.₹8,500
- C.₹9,000✓ Correct
- D.₹9,500
Rate = (11979−10890)/10890 × 100 = 1089/10890 × 100 = 10%. So principal = 10890/(1.1)² = 10890/1.21 = ₹9,000.
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