Question

if a work force of 350 men can finish a certain piece of work in 8 months. how many extra men must be employed by the contractor to complete the job in 5 months ​

Answer 1

Answer:

Men Time

420 9 months

x 7 months

As the number of workers is inversely proportional to time taken:

420×9=x×7⟹x=

7

420×9

=540

∴ extra men needed: 540−420=120