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

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 ?
30

Problem: the sum of the even numbers between 1 and n is 89 * 90 , where n is an odd number , then n = ?
179

Problem: a sells a bicycle to b and makes a profit of 60 % . b sells the same bicycle to c at a profit of 25 % . if the final s . p . of the bicycle was rs . 225 , find out the cost price of the bicycle for a .
112.