7.
A contractor with a work force of 420 men can complete a work of construction of
a building in nine months. Due to request by the owners he was asked to complete
the job in seven months. How many extra men he must employ to complete the job?
Answers
Answered by
14
Answer:
let the workers to be x
time taken by 420 men to complete the work . x= 9 months
x = 420 × 9 = 3780
people required to complete the work in 9 months = x ÷7 = 3780÷ 7
3780 ÷ 7 = 540
540 men will be required
Answered by
2
Answer:
the contractor had to employ 540 people more to complete the job.
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