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  9. Q27

RRB NTPC 2026 · Question 27 of 93

Amit had invested the same amount of sums at simple as well as compound interest, compounded annually. The time period of investment for both the sums was 2 years and rate of interest too was same, 4% per annum. At the end, he found a difference of ₹44 in both the interests received. What were the sums (in ₹) invested?

  1. A₹26,600
  2. B₹27,850
  3. C₹27,500Correct
  4. D₹26,750

Answer: C. ₹27,500

Explanation

Given: ​ Rate of interest = 4% per annum Time = 2 years Difference between CI and SI = 44 Concept Used: Difference between CI and SI for 2 years Formula Used: r 2 Difference = P ( ) 100 ​ Solution: 2 4 44 = P ( ) 100 ​ 16 44 = P × 10000 ​ 44 = P × 0.0016 44 P = 0.0016 ​ P = 27500 Final Answer: Sum invested = 27500​

Source: RRB NTPC CBT-I Memory-Based Paper 16 March 2026 S1 (careerpower test-platform compilation) · memory-based

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