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9. 3 men or 5 women can do a work in 12 days. How long will 6 men and 5 women takedo it?6 do(b) 6 doua |
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Answer» Given : 3 men or 5 women can do a work in 12 days. Required : how long will 6 men and 5 women take to do it. Since 3 men's work = 5 women's work Therefore, 1 man's work = 5/3 women's work 6 men is equivant to 6*5/3 = 10 women Total workers in term of women available for work are 10 +5 = 15 women 5 women can complete in 12 days 1 woman can complete 12*5 = 60 days Therefore, 15 women can complete the work in 60/15 = 4 days Thus, the work can be completed by 6men and 5 women working together in 4 days. |
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