1.

4 man can complete a piece of work in 2 days. 4 wonen can complete the same piece of work in 4 days whereas 5 children can complete the same piece of work in 4 days. If, 2 men, 4 women and 10 children work together, in how many days can the work be completed ?

Answer»

1 day
3 days
2 days
4 days

Solution :`4XX 2` MEN= `4xx4` women `= 5xx4` chidren
`rArr 2 ` men = 4 women = 5 children
`THEREFORE` 2 men + 4 women + 10 children
= 20 children
`therefore M_(1)D_(1) =M_(2)D_(2)`
`rArr5xx4=20xxD_(2) rArr D_(2)=1 day`


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