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8 men and 12 boys can finish a piece ...

8 men and 12 boys can finish a piece of work in 10 days while 6 men and 8 boys can finish it in 14 days. Find the time taken by one man alone and that by one boy alone to finish the work.

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The correct Answer is:
1 woman in 140 days, 1 man in 280 days
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