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

Input: Consider Input: Problem: find the sum the difference between the compound and s . i . on a certain sum of money for 5 years at 20 % per annum is rs . 75 of money ?

Output: 1875


Input: Consider Input: Problem: a 9 % stock yields 8 % . the market value of the stock is :

Output: rs . 112.50


Input: Consider Input: Problem: two pipes a and b can separately fill a tank in 12 and 15 minutes respectively . a third pipe c can drain off 36 liters of water per minute . if all the pipes are opened , the tank can be filled in 15 minutes . what is the capacity of the tank ?


Output: 43