A contractor with a work force of 420 men 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?
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Let work to be done be x
Time taken by 420 persons 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
Therefore, the contractor had to employ 540 people more to complete the job.
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Time taken by 420 persons 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
Therefore, the contractor had to employ 540 people more to complete the job.
☆ HOPE IT HELPS YOU☆
for more help you can inbox me @saanvipriya
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