TASK DEFINITION: The task is to generate the correct answer for a given math problem.
PROBLEM: Problem: joan took out a mortgage from hel local bank . each monthly mortgage payment she makes must be triple the amount of the previous month ' s payment . if her first payment is $ 100 , and the total amount she must pay back is $ 914800 , how many months will it take joan to pay back her mortgage ?

SOLUTION: 9

PROBLEM: Problem: the average of first 22 natural numbers is ?

SOLUTION: 11.5

PROBLEM: Problem: a bullet train 160 m long is running with a speed of 70 kmph . in what time will it pass a man who is running at 8 kmph in the direction opposite to that in which the bullet train is going ?

SOLUTION:
7.38 sec