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

Input: Consider Input: Problem: if the cost price of 50 articles is equal to the selling price of 40 articles , then the gain or loss percent is ?

Output: 25 %


Input: Consider Input: Problem: if shares of two persons in profits are rs . 600 and rs . 1000 then ratio of their capitals is

Output: 3 : 5


Input: Consider Input: Problem: the area of a circular field is 17.56 hectares . find the cost of fencing it at the rate of rs . 7 per metre approximately


Output: 10400