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A and B can do a piece of work in 24 and 30 days respectively. Both started the work and worked for 6 days. Then B leaves the work and C joins and the remaining work is completed by A and C together in 11 days. Find the days in which C alone can do the work |
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Answer» 80 B's 1 day work `= 1/30` `(A+B)'s6` day work `= 9/20` Remaining work `= 11/20` it is done by A & C in 11 days. `therefore 11 xx (1/24 + 1/C) = 11/20` `RARR 1/24 + 1/C = 1/20` `rArr 1/C = 1 /120` `rArr C` can do work in 120 days. |
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