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If 10 men can do a work in 6 days and 15 women can do the same in 5 days, then 8 men and 5 women can together do the work in
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Explanation:
10 men can do the work in 6 days.
If the work is to be finished in 5 days, then number of women required = 15
If the work is to be finished in 6 days, then number of women required = 15×5\6=25\2
∴10men=25\2women
=>5women=4men
Therefore, 8 men + 5 women = 8 men + 4 men = 12 men
Now 10 men can finish the work in = 6 days
Therefore, 12 men can finish the work in 6×10\12=5 days