SOLUTION: A chemist wishes to make 12 and 1/2 liters of an acid solution by using water and acid in the ratio 3:2. how many liters should she use?

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Question 1130115: A chemist wishes to make 12 and 1/2 liters of an acid solution by using water and acid in the ratio 3:2. how many liters should she use?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
%2812%261%2F2%29%283%2F2%29 liters of the water. The rest is the acid.
(That is, if water:acid is ratio 3:2 ).

Answer by ikleyn(52799) About Me  (Show Source):
You can put this solution on YOUR website!
.
The problem says that there are 3 equal parts (volumes) of water and 2 equal parts (volumes) of acid.


It means 5 parts of the mixture liquid, in all.


5 parts comprise 12.5 liters - hence, each part is  12.5%2F5 = 2.5 liters.


Thus you get the answer:  3*2.5 liters = 7.5 liters of water and 2*2.5 liters = 5 liters of the acid.

Solved.

Ignore each and every other different answer - since it is INCORRECT.