If 5 men or 9 women can do a piece of work in 19 days,then in how many days will 3 men and 6 women do the same work?
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5 men = 19 days
3 men = 5/3 X 19 = 31.67 days
9 women = 19 days
6 women = 9/6 X 19 = 28.5 days
3 men + 6 women in 1 day = 1/31.67 + 1/28.5 =
= 0.0315756 + 0.0350877 = 0.0666633
= 667 / 10,000
So they will complete the work in 10,000/667 = 14.99 days ~15 days
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