Subject

    Quantitative Aptitude

    Topic

    Unitary Method

    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 as 2 men ?

    ক)
    18
    খ)
    20
    গ)
    25
    ঘ)
    30

    Explanation

    Solution:  3 women = 2 man    21 women  = 14 men 15 man works 8 hours for = 21 days 1  "        "      1  "       "    = 21 × \times 8 × \times 15 days 14 "       "      6  "       "    = (21 × \times 8 × \times 15) / (14 × \times 6)  = 30 days

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