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

Ex Input:
Problem: a company pays 12.5 % dividend to its investors . if an investor buys rs . 60 shares and gets 25 % on investment , at what price did the investor buy the shares ?

Ex Output:
30


Ex Input:
Problem: a man can row 6 kmph in still water . when the river is running at 3 kmph , it takes him 1 hour to row to a place and black . what is the total distance traveled by the man ?

Ex Output:
4.5


Ex Input:
Problem: if 4 men can colour 48 m long cloth in 2 days , then 6 women can colour 36 m long cloth in ?

Ex Output:

day