PLEASE HELP (MATH)
posted by Cheng Bin
Six quarts of a 20% solution of alcohol in water are mixed with 4 quarts of a 60% solution of alcohol in water. The alcoholic strength of the mixture is.
A. 80%
B. 50%
C. 36%
D. None
I HAVE NO IDEA HOW TO DO IT PLEASE HELP

bobpursley
.2*6+.6*4=A*10
solve for A
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