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Discussion

  1. 2 men or 5 women or 7 boys can finish a work in 469 days, then the number of days taken by 7 men, 5 women and 2 boys to finish the work is :
    1. 134
    2. 106
    3. 100
    4. 98
  1. Correct Option: D

    2 men = 7 boys
    ⇒ 1 man = 7/2 days

    5 women = 7 boys
    ⇒ 1 women = 7/5 boys

    7 men + 5 women + 2 boys = 7 x 7/2 + 5 x 7/5 + 2 = 67/2 boys
    Now, B1 x D1 = B2 x D2
    7 X 469 = 67/2 x D2
    D2 = 98 days


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