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A is twice as efficient as B and therefore is able to finish a job in 30 days less than B Working together, they can do it in |
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Answer» Answer: 20 DAYS Step-by-step explanation: i.e EFFICIENCY ratio of A : B = 2:1 efficiency is considered as one day work. Number of days taken by A = (x-30) days Number of days taken by B = x days Total Work done by A = (x-30) * 2 Total Work done by B = x * 1 By equating work done Total Work done by A = 30 days Total Work done by B = 60 days Together they can do it in 20 days |
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