A, B and C can do a work in 8 days, 8 days and 12 days respectively. In how many days can all three of them working together, complete the work?
Choose one: A) 3 B) 2 2/8 C) 2 2/0 D) 2 2/2 E) 2 2/1
Work done by all three of them in one day = 1/8 + 1/8 + 1/12 = 1/3   The number of days required = 3 days.   3nswer:3
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A, B and C can do a work in 8 days, 8 days and 12 days respectively. In how many days can all three of them working together, complete the work?