Emily mixed together 9 gal. of Brand A fruit drink and 8 gal. of Brand B fruit drink which contains 48% fruit juice. What is the percent of fruit juice in Brand A if the mixture contained 30% fruit juice?

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Answer 1 · 2016-02-20T15:26:14

You do this by figuring out the amounts of pure fruit juice in all.

Mixture:
17 gal 30% contains: #17*30/100=5.10# gal pure juice

From Brand B:
8 gal 48% contains: #8*48/100=3.84# gal pure juice

So #5.10-3.84=1.26# gal came from 9 gal of brand A

So the percentage of A is:
#1.26/9*100=14%# pure juice.