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Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-21

  • question_answer
    8 men can dig a pit in 20 days. If a man works half as much again as a boy, then 4 men and 9 boys can dig a similar pit in

    A)  10 days           

    B)  12 days

    C)  15 days           

    D)  16 days

    Correct Answer: D

    Solution :

    1 man \[=\frac{3}{2}\]boys, 8 men \[=\left( 8\times \frac{3}{2} \right)\]boys = 12 boys (4 men + 9 boys)\[=\left( 4\times \frac{3}{2}+9 \right)\]boys = 15 boys Now, 12 boys dig it in 20 days. 1 boy digs it in\[(20\times 12)\]days. 15 boys will dig it in\[\frac{(20\times 12)}{15}\]days = 16 days


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