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

[EX Q]: Problem: the ratio of three numbers is 2 : 3 : 4 and their sum is 180 . the second number of the three numbers is ?
[EX A]: 60

[EX Q]: Problem: twice the larger of two numbers is 3 more than 5 times the smaller , and the sum of 4 times the larger and 3 times the smaller is 71 . what are the numbers ?
[EX A]: 14

[EX Q]: Problem: the price of a book is increased from $ 300 to $ 330 . what is the % of increase in its price ?
[EX A]:
10 %