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A contractor undertook a contract to complete a part of a stadium in 9 months with the work force of 560 men. later on, it was required to complete a job in 7 months
How many extra men would he employ?
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Step-by-step explanation:
In 9 months, a part of stadium can complete by 560 persons. ∴ In 1 month, the work can be complete by 9 × 560 = 5040 persons.
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