A work-force of 420 men with a contractor can finish a certain piece o – InterviewSolution

1.

A work-force of 420 men with a contractor can finish a certain piece of work in 9 months. How many extra men must he employ to complete the job in 7 months?

Answer»

Let the number of men required be ‘x’ men

Total men = 420

Men	420	x
Time (months)	8	7

We know k = xy

420 × 9 = x × 7

x = (420×9)/7

= 540

So, 540 – 420 = 120 Men

∴ 120 extra men are required to finish the job in 7 months.

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