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March 26, 2015

March 26, 2015

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.

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