lheiannie07 wrote:A work crew of 4 Men takes 5 days to complete one-half of a job. If 6 men are then added to the crew and the men continue to work at the same rate, how many days will it take the enlarged crew to do the rest of the job?
A. 2
B. 3
C. 3 1/3
D. 4
E. 4 4/5
The amount of work is the same for each half of the job, enabling us to use the following formula:
(workers)(time) = (workers)(time).
Since 4 workers take 5 days to do half the job, and we must determine the number of days for 10 workers to do the remaining half, we get:
(4 workers)(5 days) = (10 workers)(x days)
20 = 10x
x = 2.
The correct answer is
A.
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