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Railways PYQCBT 1 2016

RRB NTPC · Question 42

Find the simple interest rate at which a sum of money becomes five times at simple interest in 10 years. A. 40% B. 35% C. 25% D. 50%

  1. B

  2. D

  3. A

  4. C

Show answer & explanation

Answer: (C) A

Explanation

The sum becomes 5 times, so the interest is 4 times the principal in 10 years: 400% in 10 years, or 40% per annum.