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July 22, 2014

July 22, 2014

Posted by **tammy** on Wednesday, January 7, 2009 at 6:38am.

A. 0.8 days

B. 1.09 days

C. 1.23 days

D. 1.65 days

E. 1.97 days

thanks.

- math -
**drwls**, Wednesday, January 7, 2009 at 7:37amFirst add the "jobs per day" rates of all three people.

1/4 + 1/6 + 1/2 = (3 + 2 + 6)/12 = 11/12 jobs per day

Then divide 1 job by 11/12 jobs/day to get the answer: 12/11 = 1.09 days

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