6 women and 6 men together can complete a piece of work in 6 days. In how many days can 15 men alone complete the piece of work if 9 women alone can complete the work in 10 days ?
6 women and 6 men together can complete a piece of work in 6 days. In how many days can 15 men alone complete the piece of work if 9 women alone can complete the work in 10 days ?
A 6
B5
C7.2
D4
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Answer is 4
Explanation:
9 women can complete the work in10 days.
6 women can complete the work in
= 15 days. Part of work done by 6 women =
= Part of work done by 6 men =
part of work done by 6 men in 1 days. 1 part of work done by 6 men in
× 5= 10 days. 15 men can complete the work in
= 4 days
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