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

Input: Consider Input: Problem: the speed of a car is 85 km in the first hour and 45 km in the second hour . what is the average speed of the car ?

Output: 65 kmph


Input: Consider Input: Problem: positive integer y is 50 percent of 25 percent of positive integer x , and y percent of x equals 100 . what is the value of y ?

Output: 125


Input: Consider Input: Problem: if the cost price of 18 articles is equal to the selling price of 16 articles , what is the percentage of profit or loss that the merchant makes ?


Output: 12.5 % profit