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September 15, 2014

September 15, 2014

Posted by **frank** on Thursday, September 11, 2008 at 6:21am.

- math -
**bobpursley**, Thursday, September 11, 2008 at 7:16amwork=rate*time

worktotal=sallyrate*time + johnrate*time

time= worktotal/(sallyrate +johnrate)

= 1house/(house/4 + house/6)

= 24/24 * 1/(1/4 + 1/6)

= 24 * 1/(6 + 4)= 24/10 hrs

check my thinking.

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