a contractor undertakes to dig a canal,6 km Long ,in 35 days and employed 90 men . he finds that after 20 days only 2km of canal have been dug . how many more men must he employ to finish the work at time? (please by arrow method)
ayushparihar:
please answer my question
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the contractor has 15 days left and 4 km more to complete to dig the canal
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