if 3 men or 6 boy can do a work in 20days then 6men and 8 boys shall take
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Answer:
3 men=6 boys or 1 man=2 boys.
6 men and 8 boys=(2×6+8) boys or 20 boys.
If 6 boys can do a job in 20 days
∴20 boys can do a job in
6×20 ÷ 20
=6 days.
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