Question 1191183
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6 liters of the punch are composed of 4+3+5 = 12 equal parts/volumes.


So, each of these parts is  6/12 = 0.5 liters.


Hence, the volume of ginger ale is 5 times 0.5 liters, or 2.5 liters.    <U>ANSWER</U>
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Solved.