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January 26, 2015

January 26, 2015

Posted by **karen** on Thursday, April 8, 2010 at 6:57pm.

- math -
**Reiny**, Thursday, April 8, 2010 at 7:27pmpaul's rate = house/4

Mike's rate = house/6

combined rate = house/4 + house/6

= 5(house)/12

time for both = house/(5house/12)

= 12/5 = 2.4 hours

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