# Thread: Be a genius, solive this question : ) (Rational Functions)

1. ## Be a genius, solive this question : ) (Rational Functions)

If Ms K and Ms E work together they can make a unit test in 1 hour and 1 minute. Working alone Ms V takes 10 minutes less than Ms E to complete the test and 5 minutes longer than Ms K.

How long do each take on their own to complete a test?

Thanks a lot, guys.

2. Can you please post some attempted work?

It would be nice to see that you actually tried to solve this problem before asking for help.

3. the question is a work and rates problem. Rational functions are not involved

4. Lol, the unit this word problem is from is: RATIONAL FUNCTIONS.

So, yeah.

If you knew how to do the problem, why not offer some help?

Conducive people on this forum...

5. Originally Posted by MHurricane
If Ms K and Ms E work together they can make a unit test in 1 hour and 1 minute. Working alone Ms V takes 10 minutes less than Ms E to complete the test and 5 minutes longer than Ms K.

How long do each take on their own to complete a test?
To learn how to set up "work" type exercises, try here.

Your set-up will involve rational expressions, since the "time" variable will be in the denominators of the "rate" expressions.