instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: a man can do a piece of work in 7 days , but with the help of his son , he can finish it in 3 days . in what time can the son do it alone ?
answer:
4 1 / 5


question:
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 ?
answer:
70


question:
Problem: the measure of the side of a square is quadrupled . if x represents the perimeter of the original square , what is the value of the new perimeter ?
answer:

4 x', 'c ) 9 x', 'd ) 12 x', 'e ) 27 x'