TASK DEFINITION: Given a math problem with context and a question and 5 answer choices, the task is to provide the correct answer choice based on the problem. You must choose one of the given answer choices by letter: a, b, c, d, or e; anything else is invalid.
PROBLEM: Problem: if the price of a certain computer increased 30 percent from b dollars to 351 dollars, then 2 b =
Options: a. 540, b. 570, c. 619, d. 649, e. 700

SOLUTION: a

PROBLEM: Problem: 3 ltr of water is added with 9 ltr of a solution containing 57 % of alcohol in the water. the % of alcohol in the new mixture is ?
Options: a. 41.5 %, b. 42.75 %, c. 43 %, d. 45 %, e. 45.75 %

SOLUTION: b

PROBLEM: Problem: a certain kind of necklace is made from 9 green, 6 white, and 3 orange beads. what is the maximum number of these necklaces that can be made from 45 beads of each color ?
Options: a. 7, b. 8, c. 5, d. 6, e. 2

SOLUTION:
c