How many 55% alcohol we need to pour into 14 liters 75% alcohol to get p3% of the alcohol? How many 65% alcohol we get?

Correct result:

V1 =  14 l
V3 =  28 l


55%V1+1475%=(V1+14)65%  V1=1475656555=14 l
V3=V1+14=28 l

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