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    Question

    What will be the ratio of simple interest earned on

    certain amount at the same rate of interest for 5 years and that for 10 years?
    A 1:2 Correct Answer Incorrect Answer
    B 3:4 Correct Answer Incorrect Answer
    C 4:5 Correct Answer Incorrect Answer
    D 3:7 Correct Answer Incorrect Answer

    Solution

    Let the principal be P and rate of interest be R%. Required ratio = [(P×R×5)/100)]/[(P×R×10)/100)] = 5PR/10PR = 1:2

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