Multiple Choice Questions on In a tank there are two taps one can fill the tank in 10 hours while others will drain the water in ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

In a tank there are two taps one can fill the tank in 10 hours while others will drain the water in ...........

Quantitative Aptitude (CDS) Pipes&cistern
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    In a tank, there are two taps one can fill the tank in 10 hours while others will drain the water in 6 hours. If 3/5 part of the tank is filled and both the taps were opened then the tank will empty in how much time?

    11 hours

    Incorrect Answer

    9 hours

    Correct Answer

    8 hours

    Incorrect Answer

    12 hours

    Incorrect Answer
    Explanation:

    t(1/10 -1/6)+3/5=0
    t(-4/60)=-3/5
    t=9 hours

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