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January 31, 2015

January 31, 2015

Posted by **jessica** on Wednesday, May 27, 2009 at 7:20pm.

- math -
**bobpursley**, Wednesday, May 27, 2009 at 7:23pmIn 24 hours, they can do 10 jobs (numberjobs=24/4 + 24/6)

so it takes 2.4 hours (24/10) hours per job with both of them working.

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