Saturday

August 23, 2014

August 23, 2014

Posted by **Saige** on Thursday, January 19, 2012 at 11:31pm.

- algebra -
**Steve**, Friday, January 20, 2012 at 10:41amrewording to indicate the rate of completion,

a = 1/6 pool/hr

b = 1/4 pool/hr

they work together for 2/3 hour, so they filled

(1/6 + 1/4)*2/3 = 5/18 pool

So, how long does it take A to fill the other 13/18 pool?

13/18 / 1/6 = 13/3 hour

So, the whole pool took 2/3 + 13/3 = 15/3 = 5 hours to fill, finishing an hour late.

**Related Questions**

math - If pump A and pump B work together, they can fill a pool in 4 hours. Pump...

Algebra I - Pump A, working alone, can fill a tank in 3 hours, and pump B can ...

math - Three water pipes are used to fill a swimming pool. The 1st pipe alone ...

Algebra - Two hoses are connected to a swimming pool. Working together, they can...

maths - One pump fills a tank two times as fast as another pump. If the pumps ...

algebra - Two pumps can fill a water tank in 256 minutes when working together. ...

Math - Two hoses are connected to a swimming pool. Working together, they can ...

Algebra - An inlet pipe on a swimming pool can be used to fill the pool in 24 ...

MATH - An inlet pipe can fill an empty pool in 3 hours. Another pipe can fill ...

Algebra - 2 pumps can fill a water tank in 45 minutes when working together. ...