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      Question

      An amount doubles itself on simple interest in 3 years.

      What is the percent per annum rate of interest?
      A 25% Correct Answer Incorrect Answer
      B 50% Correct Answer Incorrect Answer
      C 12.5% Correct Answer Incorrect Answer
      D 33.33% Correct Answer Incorrect Answer

      Solution

      3 years =2 times 3 years =2 times -1 3 years =1 Rate of interest =1/3) ×100 =33.33%%

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