Q4 of 32 Page 246

175 men can dig a canal 3150 m long in 36 days. How many men are required to dig a canal 3900 m. long in 24 days?

Given: Number of days required for 175 men to dig a canal 3150m long = 36

To find: Number of men required to dig a canal of 3900m in 24 days.


Formula: = Constant where W = Work, WF = Workforce, T = Time






Gives WF2 = 325


∴ Number of men required to dig a canal of 3900m in 24 days is 325


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