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 be employ to complete the work ?
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1008 workers needed
502 workers needed to be employed
Step-by-step explanation:
workers: 560 x
months: 9 5
As the number of months decrease ; workers increase
Thus inverse variation is used
xy = constant
Thus:
9*560 = 5x
5040 = 5x
5040/5 = x
1008 = x
no.of workers already employed = 506
no.of workers needed to be employed = 1008-506 = 502
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