Board Thread:Off-Topic/@comment-34177111-20181219204438/@comment-36268370-20190112120957

er... banana

WYR

Solve this: A scientist needs to get exactly 15 gallons of 60% of pure acid. They already have a 90% pure acid, and a 55% pure acid. How much 55% acid do they need to combine with the 90% pure acid?

OR

Solve this: Why do we have school? Explain with at least 25 pages.

(btw the answer to the first one is 1 and 2/7 gallons)