Multiple Choice Questions on If X Y and Z can complete a work in 6 days If X can work twice faster than Y and thrice faster ........... for RRB(NTPC) Exam Preparation

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Multiple Choice Questions

If X Y and Z can complete a work in 6 days If X can work twice faster than Y and thrice faster ...........

Quantitative Aptitude (RRB NTPC) Time and work
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    If  X, Y and Z can complete a work in 6 days. If X can work twice faster than Y and thrice faster than Z, then the no of days Z alone can complete the work is  

    22 days

    Incorrect Answer

    11 days

    Incorrect Answer

    33days

    Correct Answer

    30days

    Incorrect Answer
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    Explanation:

    Answer & Explanation
    Answer – C.33days
    Explanation :
    1/x+1/2x+1/3x = 1/6
    6+3+2/6x = 6
    11/6x = 6
    X = 11
    Z = 3x = 33

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