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A, B, C can do a piece of work in 10 days, 15 days, 20 daysrespectively. If they work together, then the number of days thework will be completed in |
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Answer» About 6 DAYS Step-by-step explanation: B's work in one day = 1/15 C's work in one day = 1/20 Combined work in one day = 1/10 + 1/15 + 1/20 = 6/60 + 4/60 + 3/60 = 13/60 = about 6 days |
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