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

Input: Consider Input: Problem: the perimeter of a triangle is 36 cm and the inradius of the triangle is 2.5 cm . what is the area of the triangle

Output: b ) 45

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: what is the value of x ^ 2 yz xyz ^ 2 , if x = 2 , y = 1 , and z = 1 ?
Output: 6