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

Ex Input:
Problem: a rectangle having length 89 cm and width 34 cm . if the length of the rectangle is increased by eighty percent then how much percent the breadth should be decreased so as to maintain the same area .

Ex Output:
47.33 %


Ex Input:
Problem: the average of temperatures at noontime from monday to friday is 55 ; the lowest one is 45 , what is the possible maximum range of the temperatures ?

Ex Output:
40


Ex Input:
Problem: if 2 x = 3 y = 10 , then 15 xy = ?

Ex Output:

25