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

[EX Q]: Problem: two cycles are standing side - by - side . one cycle , which is 2.5 feets tall , casts a shadow that is 5 feets long . the other cycle is 2 feets tall . compute , in feets , the length of the shadow that the shorter cycle casts .
[EX A]: 4

[EX Q]: Problem: in x game of billiards , x can give y 20 points in 60 and he can give z 30 points in 60 . how many points can y give z in x game of 120 ?
[EX A]: 30

[EX Q]: Problem: if the price of petrol increases by 40 , by how much must a user cut down his consumption so that his expenditure on petrol remains constant ?
[EX A]:
28.6 %