40 workers can dig a channel of 16m in 12days working 8hrs per day. What length of similar channel can be dug by 25 workers in 16 days working 9 hrs a day
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M¹*T¹/W¹ = M²*T²/W²
where
M¹-40 worker
T¹-12*8hrs
W¹-16m
M²-25 worker
T²-16*9
W²=?
Ans is 15meter.
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