Friday

December 19, 2014

December 19, 2014

Posted by **patel** on Friday, October 21, 2011 at 9:09am.

- maths -
**bobpursley**, Friday, October 21, 2011 at 9:26amrate=amount/time

rate combined=sum of rates=1tank/3.5hr+1tank/4.2hrs

rate combined=(4.2+3.5)/(3.5*4.2) tanks/hr work this out.

time= 1tank/(above rate)

- maths -
**Steve**, Friday, October 21, 2011 at 12:54pmI also misread the problem. It is being emptied at 4.2 hrs.

**Answer this Question**

**Related Questions**

maths - a tank can be filled by one pipe in 3.5 hours and emptied by another in ...

math - a tank can be filled by one pipe in 3.5 hours and emptied by another in 4...

math - a tank can be filled by one pipe in 3 .5 hours and emptied by another in ...

math - A tank fitted with two pipes is to filled with water. One pipe can fill ...

math - the fill pipe for a tank can fill the tank in 4 hours and the drain pipe ...

Math - A tank is filled with an intake pipe that will fill it in 5 hours and an ...

Math - One pipe fills a tank in 1 hour while another pipe can fill the same tank...

college algebra - an inlet pipe can fill a large water tank in 3 hours. an ...

Algebra - Two pipes fill a storage tank in 9 hours. If the larger pipe fills the...

algebra - a tank used to operate equipment can be filled with air in 3 hours. ...