A contractor who had a work force of 630 persons undertook to complete a portion of a stadium in 14 months . He was asked to complete the job in 9 months . How many extra persons had he to employ ?
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Step-by-step explanation:
People required to complete contract in 9 months =560
Let people requurre to complete contract in 5 months=x
ACC. To inverse proportion
A1\A2= B2/B1
5/9=560/x
5x= 560*9
x=560*9/5=1008
Extra person needed = 1008-560= 448 persons more should be employed
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