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Discussion :: Percentage

  1. Two-fifth of one-third of three-seventh of a number is 15. What is 40% of that number?
    2. A.
    72
    B.
    84
    C.
    136
    D.
    140
    E.
    None of these

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    Answer : Option E

    Explanation :

    Let the number be x. Then,

    2/5 of 1/3 of 3/7 of 

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