SOLUTION: A postal worker can sort a day's worth of mail in 8 hours. With her supervisor helping, it takes 3 hours. How long would it take the supervisor working alone?
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Question 1088683: A postal worker can sort a day's worth of mail in 8 hours. With her supervisor helping, it takes 3 hours. How long would it take the supervisor working alone? Answer by ikleyn(52786) (Show Source):
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A postal worker can sort a day's worth of mail in 8 hours. With her supervisor helping, it takes 3 hours.
How long would it take the supervisor working alone?
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Since the worker and the supervisor can complete the work i n 3 hours, their combined rate of work is of the work per hour.
The worker's individual rate of work is of the work per hour.
Hence, the supervisor's rate of work is the difference = = of the work per hour.
It means that the supervisor can complete the work in hours, which is equal to = hours = 4 hours and 48 minutes.
Answer. the supervisor can complete the work in 4 hours and 48 minutes, if he will work alone.
