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Answer : 2 1/6 Explanation : Answer: B) 1/6 Explanation: Total work is given by L.C.M of 72, 48, 36Total work = 144 unitsEfficieny of A = 144/72 = 2 units/dayEfficieny of B = 144/48 = 3 units/dayEfficieny of C = 144/36 = 4 units/day According to the given data,2 x p/2 3 x p/2 2 x (p 6)/3 3 x (p 6)/3 4 x (p 6)/3 = 144 x (100 - 125/3) x 1/1003p 4.5p 2p 3p 4p = 84 x 3 - 54p = 198/16.5p = 12 days. Now, efficency of D = (144 x 125/3 x 1/100)/10 = 6 unit/day(C D) in p days = (4 6) x 12 = 120 unitRemained part of work = (144-120)/144 = 1/6.

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