What will be the Sum? If

The simple interest on a certain sum at 5% per annum for 3 years and 4 years differ by Rs.42. The sum is

  1. Rs.210
  2. Rs.280
  3. Rs.750
  4. Rs.840
Monis Rasool Professor Asked on 23rd May 2015 in Maths.
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  • 1 Answer(s)

    Answer: (d) Rs. 840

    Explanation:-

    Given- Rate = 5%, time = 4 – 3 = 1 year, interest = Rs.42

    Formula:-

    Simple interest = (P x R x T)/100   where, P = principal, R = rate, T = time

    42 = (P x 1 x 5)/100
    P = 840

    Anurag Mishra Professor Answered on 23rd May 2015.
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