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

Ex Input:
Problem: a number x is 5 times another number y . the percentage that y is less than x is

Ex Output:
80 %


Ex Input:
Problem: in a dance competition the points in each round for the first , second , third and fourth position were 10050 , 2010 . no other points were given . ashita participated in several rounds in the competition and the product of her score was 50000 . in how many rounds did she participate ?

Ex Output:
can not be determine


Ex Input:
Problem: the spherical ball of lead 3 cm in diameter is melted and recast into 3 spherical balls . the diameters of two of these are 1 1 / 2 cm and 2 cm respectively . the diameter of third ball is ?

Ex Output:

2.5