Multiple Choice Questions on A certain sum was invested on simple interest The amount to which it had grown in five years was 5 4........... for SSC CHSL Preparation

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Multiple Choice Questions

A certain sum was invested on simple interest The amount to which it had grown in five years was 5 4...........

Quantitative Aptitude (CHSL) Simple Interest
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    A certain sum was invested on simple interest. The amount to which it had grown in five years was 5/4 times the amount to which it had grown in three years. The percentage rate of interest was:

    15%

    Incorrect Answer

    25%

    Incorrect Answer

    20%

    Correct Answer

    10%

    Incorrect Answer
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    Explanation:

    Let amount in 3 years = Rs. x

    Amount in 5 years = 5x/4

    Interest of 2 years =5x/4-x

    =x/4

    Interest of 3 years = 3/2* x/4

    = 3x/8

    Principal = x-3x/8

    =5x/8

    Rate = Interest *100/Time *Principal

    Rate = 3x/8 * 100/3 * 5x/8

    = 20%

    Hence option 3 is the correct answer.

    By: Himani Bihagra
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