A group of \(40\) workers working together has to complete a piece of work in \(30\) days. If all the workers work at a

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A group of \(40\) workers working together has to complete a piece of work in \(30\) days. If all the workers work at a constant rate and after \(20\) days, it was found that only \(\dfrac14 \, th\) of the work was completed, then how many more workers should be recruited so that the work gets completed on time?

A. 32
B. 100
C. 200
D. 240
E. 280

Answer: C

Source: e-GMAT
Source: — Problem Solving |