Question

A alone can do a work in 30 days. B alone can do the

Q: Answer-A alone can do a work in 30 days. B alone can do the same work in 40 days. If they work on alternate...

A can do a work in 30 days B can do a work in 40 days Total work done by A B both LCM of 30 40 120 Efficiency of A 12030 4 Efficiency of B 12040 3 Work done by A on 1st day 12030 4 Work done by B on 2nd day 12040 3 Work done in first 2 days by A B 4 3 7 then, work done in 2 x 17 34 days by A B 17 x 7 119 Remaining work will be done by A 120 1194 14 day Total time 34 14 3414 days The work will be done in 3414 days

same work in 40 days. If they work on alternate days starting with A. then in how many days (correct up to two places of decimal) the work will be completed?

A 16.33

B 17.25

C 32.33

D 34.25

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A alone can do a work in 30 days. B alone can do the

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