How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid to obtain a mixture containing a 40% solution of acid?

asked Jun 12, 2018 190k views

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5 votes

Answer:

Explanation:

Razzildinho answered Jun 14, 2018

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3 votes

suppose x quarts of the 50% solution
0.5x+0.2*20=0.4(x+20)
0.5x+4=0.4x+8
0.1x=4
x=40

Tadas answered Jun 17, 2018

by Tadas

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