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  9. Q129

TNPSC Group-I 2021 · Question 129 of 148

The difference between the compound interest and simple interest accrued on an amount Rs. 18,000 in two years is Rs. 405. Then the rate of interest per annum is

Aptitude - Interest

  1. A12%
  2. B15%Correct
  3. C18%
  4. D10%

Answer: B. 15%

Explanation

18000 x (r/100)^2 = 405 gives r = 15%.

Source: TNPSC Group-I Prelims (held 3 Jan 2021) - official paper via examrace.com

← Q128View full paper (148 questions)Q130 →

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