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

Example 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 ?
Example Output: can not be determine

Example Input: Problem: the length of a rectangle is increased by 15 % and its breadth is decreased by 20 % . what is the effect on its area ?
Example Output: 920

Example Input: Problem: if a train , travelling at a speed of 120 kmph , crosses a pole in 6 sec , then the length of train is ?
Example Output:
200