TASK DEFINITION: The task is to generate the correct answer for a given math problem.
PROBLEM: Problem: how many liters of a 40 % iodine solution need to be mixed with 35 liters of a 20 % iodine solution to create a 34 % iodine solution ?

SOLUTION: 13

PROBLEM: Problem: if a - b = 5 and a 2 + b 2 = 31 , find the value of ab .

SOLUTION: 3

PROBLEM: Problem: 11 times a number gives 132 . the number is

SOLUTION:
12