Question

A contractor undertook to do a certain work in 75 days and employed 60 men to do it. after 25 days he found that only one-fourth of the work was done. how many more men must be employed in order that the work may be finished in time?

Answer 1

120 more men must be employed in order that the work will be finished in time.

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Answer 2

Answer:50 men

Step-by-step explanation:

let x more workers has to hire to complete the work in time.

as we know

m1* d1= m2 d2

so

$75*60=25*60*\frac{1}{4}+50*(60+x)*\frac{3}{4}\\\\18000=1500+150(60+x)\\\\18000=1500+9000+150x\\\\150x=7500\\\\x=50$

so contractor has to hire 50 more men to complete the work.