Multiple Choice Questions on A sum of money doubles itself at CI in 10yrs In how many yrs will it become 4 times ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

A sum of money doubles itself at CI in 10yrs In how many yrs will it become 4 times ........

Quant (SSC) Compound Interest
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    A sum of money doubles itself at CI in 10yrs. In how many yrs will it become 4 times ?

    10yrs

    Incorrect Answer

    20yrs

    Correct Answer

    15yrs

    Incorrect Answer

    22yrs

    Incorrect Answer
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    Explanation:

    P(1+(R/100))10 = 2P
    1+(R/100)10 = 2
    (1+(R/100))n = 4 = 22
    2*10 = 20yrs

    By: Amit Kumar
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