SOLUTION: Pls may I ask a question.thank you in advance.A certain pipe can fill up a tank 2hours faster than another pipe.It takes 3 and__hours both pipes to fill up the same tank.How many h

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Pls may I ask a question.thank you in advance.A certain pipe can fill up a tank 2hours faster than another pipe.It takes 3 and__hours both pipes to fill up the same tank.How many h      Log On


   

Question 1169606: Pls may I ask a question.thank you in advance.A certain pipe can fill up a tank 2hours faster than another pipe.It takes 3 and__hours both pipes to fill up the same tank.How many hours would the first pipe fill up the tank?
Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52778) About Me  (Show Source):
You can put this solution on YOUR website!
.

Check your post and fix an error / (typo ?) in it.

Then re-post to the forum.

Please do not post it to me personally.



Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
"It takes 3 and__hours both pipes to fill up the same tank."
Not absolutely clear, but assuming that might be three and one half hours, then,... 

PIPE              FILL RATES

A Certain         1%2Fy

Another           1%2F%28y%2B2%29

BOTH TOGETHER     1%2F%283%261%2F2%29


1%2Fy%2B1%2F%28y%2B2%29=1%2F%283%261%2F2%29-------question asks for y.
.
.
... , y=6.14%2Ahours