3 men can do as much work as 5 women 10 children. If 40 children can finish a work in 7 days, then 6 men, 5 women and 5 children will finish the same work in

Let the total work be 280 child-days, meaning 40 children complete it in 7 days. Using the given equivalency 3 men = 5 women = 10 children, we establish the daily capacities as 1 man = 10/3 children and 1 woman = 2 children. The combined team of 6 men, 5 women, and 5 children equates to 35 children, who will complete the 280 units of work in 8 days.

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