‘A’ alone can do some work in 12 days. ‘B’ and ‘C’ together can do the same work in 6 da

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Letthetotalworkbe12unitsLCM12and6SoefficiencyofA12121unitsdaySoefficiencyofB1205unitdayEfficiencyofBandCtogether1262unitsdaySoefficiencyofC20515unitsdaySotimetakenbyCtofinishtheworkalone12158days

Question

‘A’ alone can do some work in 12 days. ‘B’ and

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Question

‘A’ alone can do some work in 12 days. ‘B’ and

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