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

Ex Input:
Problem: excluding stoppages , the speed of the bus is 54 kmph and including stoppages , it is 36 kmph . for how many minutes does the bus stop per hr

Ex Output:
20 mi

Ex 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

Ex Output:
b ) 45

Ex Input:
Problem: find large number from below question the difference of two numbers is 1311 . on dividing the larger number by the smaller , we get 11 as quotient and the 11 as remainder

Ex Output:
1441