What will the rate of Interest? If

At simple interest a sum of money is doubled in 20 years. What is the rate of interest?

  1. 20%
  2. 4%
  3. 5%
  4. 10%
Monis Rasool Professor Asked on 25th May 2015 in Maths.
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1 Answer(s)

Answer: (c) 5%
Explanation:-

Let be the amount = P and Rate = R

According to question, P = P x R x 20/100
R = 5%

Hence, the rate of interest is 5%.

Anurag Mishra Professor Answered on 25th May 2015.
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