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

Input: Consider Input: Problem: how many liters of a 40 % iodine solution need to be mixed with 35 liters of a 20 % iodine solution to create a 32 % iodine solution ?

Output: 102


Input: Consider Input: Problem: a student committee on academic integrity has 132 ways to select a president and vice president from a group of candidates . the same person can not be both president and vice president . how many candidates are there ?

Output: 1


Input: Consider Input: Problem: two diagonals of a rhombus are 72 cm and 30 cm respectively . what is its perimeter ?


Output: 156 cm', 'c ) 144 cm', 'd ) 121 cm', 'e ) 126 cm'