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

Ex Input:
Problem: last year a worker saved 4 % of her annual salary . this year , she made 10 % more money than last year and she saved 5 % of her salary . the amount she saved this year was what percent of the amount she saved last year ?

Ex Output:
137.5 %

Ex Input:
Problem: the mean daily profit made by a shopkeeper in a month of 30 days was rs . 350 . if the mean profit for the first fifteen days was rs . 255 , then the mean profit for the last 15 days would be

Ex Output:
rs . 445

Ex Input:
Problem: what is the measure of the angle q made by the diagonals of the any adjacent sides of a cube .

Ex Output:
60