In the lab, Kala has two solutions that contain alcohol and is mixing them with each other.

In the lab, Kala has two solutions that contain alcohol and is mixing them with each other. Solution A is 12% alcohol and Solution B is 40% alcohol. She uses 1000 milliliters of Solution A. How many milliliters of Solution B does she use, if the resulting mixture is a 20% alcohol solution?
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1 Answer

1000(0.12) + 0.4x = 200

120 + 0.4x = 200

0.4x = 80

x = 80/0.4 = 200ml
by Level 6 User (23.1k points)

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