1.

3 men or 5 women can do a work in 12 days.How long will 6 men and 5 women take tofinish the work?(S.S.C. 2006)

Answer»

Three men can complete the work in 12 days.Thus, one man can complete the work in 36 days.Rate of work done by one man in 1 day =136Similarly, rate of work done by one woman in 1 day = 15×12=160 Now, six men will do 636, i.e., 16 unit of work in a day.Five women will do 560, i,e., 112unit of work in a day.∴ Total work done in 1 day= 16+112 = 14 unit Thus, six men and five women will take 4 days to complete the work.

The work can be completed in 4 days.



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