Simplicity question





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College Discussion Forums: SAT/ACT Tests and Test Preparation: August 2003 Archive: Simplicity question
By Akaflex (Akaflex) on Friday, August 15, 2003 - 01:19 pm: Edit

If x people working together at the same rate can complete a job in h hours, what part of the same job can one person working alone complete in k hours?

Now one part i just dont understand is ok, xh = the time they finish but how come my book puts the recprical 1/xh * k to get the answer, how come the rate of one person is 1/xh can sum1 explain that to me plz? the answer woul d be k/xh

By Fairyofwind (Fairyofwind) on Friday, August 15, 2003 - 01:20 pm: Edit

X people working together completes a job in h hours. 1 person working completes it in xh hours. In 1 hour 1 person completes 1/xh of the job. One person working k hours, completing 1/xh of the job/hour, completes k/xh part of the job in k hours.


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