1.

8 men and 4 women together can complete a piece of work in 6 days. The work done by a man in one day is diuble the work done by a woman in one day. If 8 men and 4 women started working and after 2 days 4 men left and 4 new women joined, in how many more days will the work be complete?

Answer»

5 days
8 days
6 days
4 days

SOLUTION :`1M = 2W`
`(8M+ 4W)xx(6days-2 days)= (4 M +8W)xx X `days
`(8XX 2W +4W) xx(6-2)` days
`= (4xx2W+8W)xx x` days
`(16 +4) W xx 4 days = 16 W xx x` days
`THEREFORE x = (20 xx4)/16 = 5 days [M_(1) D_(1) = M_(2) D_(2)]`


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