Multiple Choice Questions on Two pipes P and Q fill a tank in 9hrs and 5hrs respectively If both the pipes are opens together the........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Two pipes P and Q fill a tank in 9hrs and 5hrs respectively If both the pipes are opens together the...........

Quantitative Aptitude ( CCS) Pipes&cistern
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    Two pipes P and Q fill a tank in 9hrs and 5hrs respectively.If both the pipes are opens together then after how many hours should Q closed so that the tank is full in 6hrs respectively ?

    8/3hrs

    Incorrect Answer

    5/3hrs

    Correct Answer

    5hrs

    Incorrect Answer

    3/2hrs

    Incorrect Answer
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    Explanation:

    Part of the tank is filled in 6hrs = 6/9 = 2/3
    Time taken by pipe Q = 5*1/3 = 5/3

    Hence, option 2 is the correct answer.

    By: Amit Kumar
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