The task is to generate the correct answer for a given math problem.

[EX Q]: Problem: mixture contains alcohol and water in the ratio 4 : 3 . if 5 liters of water is added to the mixture , the ratio becomes 4 : 5 . find the quantity of alcohol in the given mixture .
[EX A]: 10

[EX Q]: Problem: in august , a cricket team that played 120 matches won 24 % of the games it played . after a continuous winning streak , this team raised its average to 52 % . how many matches did the team win to attain this average ?
[EX A]: 70

[EX Q]: Problem: the average of numbers 0.64205 , 0.64203 , 0.64202 and 0.64201 is ?
[EX A]:
0.642028