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

Input: Consider Input: Problem: a merchant sells an item at a 20 % discount , but still makes a gross profit of 20 percent of the cost . what percent of the cost would the gross profit on the item have been if it had been sold without the discount ?

Output: 50 %


Input: Consider Input: Problem: a and b are 90 km apart they start to move each other simultaneously a at speed 10 and b at 5 km / hr if every hour they double their speed what is distance that a pass until he meet b ?

Output: 60 km


Input: Consider Input: Problem: how many unique positive odd integers less than 100 are equal to the product of a positive multiple of 5 and an odd number ?


Output: 10


