Three hundred men can construct a 200 m wall in 12 days working 8 hours a day.In how many days can 120 men construct 180 m wall working 9 hours a day.?
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Answer:
M1*D1*T1*W2 = M2*D2*T2*W1
300*12*8*180 = 120*X*9*200
X = 24 days . (Ans.)
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