Multiple Choice Questions on If 30 men and 14 boys can reap a field in 21 days In how many days will 20 men and 4 boys will reap ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

If 30 men and 14 boys can reap a field in 21 days In how many days will 20 men and 4 boys will reap ...........

Quantitative Aptitude ( CCS) Time and work
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    If 30 men and 14 boys can reap a field in 21 days. In how many days will 20 men and 4 boys will reap it? (When 3 men do as much as work as 5 boys.)

    36 days

    Correct Answer

    30 days

    Incorrect Answer

    42 days

    Incorrect Answer

    45 days

    Incorrect Answer
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    Explanation:

    Solution: 
    3 men = 5 boys
    M/B = 5/3
    Total work = (30 M + 14B) * 21
    (30*5 + 14*3) *21
    = 4032
    Now: 4032/20*5+4*3= 36 days.

    By: Pranav Gupta
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