Question
A, B, C can do a piece of work in 11 days, 20 days, and
22 days respectively. If B works daily and is supported by A and C on alternate days beginning with A, then in how many days will the work be finished?Solution
ABC 112022 220 201110 working fashion = (A +B, C + B) 2 days = 31 + 21 = 52 units 8 days = 208 units Remaining work =220-208=12unit 9 days = 12/31 => 220units Total time =8+(12/31) days=8 +(12/31 days
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