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May 30, 2015

Homework Help: math

Posted by tammy on Tuesday, January 6, 2009 at 10:10am.

If Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if Sam, Lisa, and Tom worked together to complete it?

A. 0.8 days
B. 1.09 days
C. 1.23 days
D. 1.65 days
E. 1.97 days
thanks.

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