Q. 68

A contractor undertook a contract to complete a part of a stadium in 9 months with a team of 560 persons. Later on, it was required to complete the job in 5 months. How many extra persons should he employ to complete the work?

Answer :

In 9 months, a part of stadium can complete by 560persons.


In 1 month, the work can be complete by 9× 560 = 5040 persons.


In 5 months, the work can be complete by


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