Are "% solution" type questions on the GMAT?

by **vgh101** Tue Nov 11, 2008 9:03 am

Are questions like this...

"How much 10% acid solution and 30% acid solution should be mixed together to yield 100 liters of a 25% acid solution?"

...on the GMAT? Just wanted to check in case I should practice those.

Thanks in advance!

by **JonathanSchneider** Thu Nov 13, 2008 2:07 am

Yes, we call these problems "weighted averages" and they do appear on the GMAT. We have a detailed discussion of this problem type in our newest "Fractions, Decimals, and Percents" Strategy Guide.