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

Input: Consider Input: Problem: 60 is to be divided into two parts such that the sum of 10 times the first and 22 times the second is 780 . the bigger part is :

Output: 45


Input: Consider Input: Problem: elvin ' s monthly telephone bill is the sum of the charge for the calls he made during the month and a fixed monthly charge for internet service . elvin ' s total telephone bill for january was $ 46 and elvin ' s total telephone bill for february was 76 $ . if elvin ' s charge for the calls he made in february was twice the charge for the calls he made in january , what is elvin ' s fixed monthly charge for internet service ?

Output: $ 16


Input: Consider Input: Problem: pipe a fills a tank in 12 minutes . pipe b can fill the same tank 3 times as fast as pipe a . if both the pipes are kept open when the tank is empty , how many minutes will it take to fill the tank ?


Output: 3 mins