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March 27, 2015

March 27, 2015

Posted by **sharon** on Thursday, March 19, 2009 at 10:46pm.

A. 12 minutes

B. 15 minutes

C. 21 minutes

D. 23 minutes

E. 28 minutes

- math -
**Damon**, Thursday, March 19, 2009 at 11:42pmJim 1/30 pools per minute

Sue 1/45 pools/min

Tony 1/90 pools/ min

Total = 3/90 + 2/90 + 1/90 = 6/90 = 1/15 pools/min

(1/15) pools /min * t = 1 pool

t = 15 min

- math -
**Damon**, Thursday, March 19, 2009 at 11:47pmTony fills 1/6 in a quarter hour, not 1/4

1/2 + 1/3 +1/6 = 1 pool

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