Practice Test Discussion

Q)

15 men take 21 days of 8 hours each to do a piece of work. How many days of 6 hours each would 21 women take, if 3 women do as much work as 2 men?

[LIC (AAO), 2009]

    • Explanation

    According to the formula,

    M1 D1 H2 = M2 D2 H1

    here,

    M1 = 15, D1 =21, H1 =8, M2 = 14, D2 = ?, H2 = 6,

    ⇒ 15×21×8=14×D2×1

    ⇒D2=15×21×814×6=30 days.

    Hence option D is the correct.

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