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January 31, 2015

January 31, 2015

Posted by **Smith** on Tuesday, March 11, 2008 at 3:05pm.

- Math -
**Reiny**, Tuesday, March 11, 2008 at 3:14pmSally's rate = house/4

Johns rate = house/4

working together = house/(house/4 + house/6)

= house/(10house/24)

= house * 24 10house

= 24/10 = 2.4

it will take 2.4 hrs or 2hrs, 24 minutes

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