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Discussion :: Simple Interest

  1. A certain sum of money doubles itself in 10 years in how much many years will it trible itself at the same rate?
    2. A.
    20 years
    B.
    15 years
    C.
    30 years
    D.
    17 1/2 years

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    Answer : Option A

    Explanation :

    100 ---- 100 --- 10

                 100 --- 10

          --------------------

                 300 ---- 20 years 

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