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

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

Output: rs . 112.50


Input: Consider Input: Problem: after decreasing 24 % in the price of an article costs rs . 684 . find the actual cost of an article ?

Output: 900


Input: Consider Input: Problem: a certain protective additive increases from 50 days to 60 days the time between required maintenance checks on an industrial vehicle . by what percent is the time between maintenance checks increased by using the additive ?


Output: 20