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

Input: Consider Input: Problem: the area of a triangle is with base 12 m and height 5 m ?

Output: 30 m 2

Input: Consider Input: Problem: if x and j are integers and 2 x j = 11 , then 4 x + j can not be

Output: 17

Input: Consider Input: Problem: the ratio of money with ram and gopal is 7 : 17 and that with gopal and krishan is 7 : 17 . if ram has rs . 490 , krishan has ?
Output: rs . 2890