general math MCQ #247

The C.I. on a certain sum for 2 years Rs.41 and the simple interest is Rs.40. What is the rate percent?

general math MCQ #247

  1. Question 1

    Q1. The C.I. on a certain sum for 2 years Rs.41 and the simple interest is Rs.40. What is the rate percent?

    • A) 4%
    • B) 5%
    • C) 6%
    • D) 8%

    Answer: 5%

    Explanation: Difference CI−SI for 2 years = P×(r/100)²; SI for 2 years = 2×(P×r/100); ratio: difference/SI = r/200 = 1/40, so r = 5%.