Multiple Choice Questions on Carpenter A can make a chair in 6 hours carpenter B in 7 hours and carpenter C in 8 hours If each ca........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Carpenter A can make a chair in 6 hours carpenter B in 7 hours and carpenter C in 8 hours If each ca...........

Quantitative Aptitude ( CCS) Time and work
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    Carpenter A can make a chair in 6 hours, carpenter B in 7 hours and carpenter C in 8 hours. If each carpenter works for 8 hours per day, how many chairs will be made in 21 days?

    61

    Incorrect Answer

    67

    Incorrect Answer

    73

    Correct Answer

    79

    Incorrect Answer
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    Explanation:

    working 8 hour per day Total hours in 21 days = 21*8=168 hr ,
    A makes =168/6=28
    b makes =168/7=24
    C makes -168/8=21
    total = 28+24+21= 73

    By: Amit Kumar
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