instruction:
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.
question:
Problem: if the area of a circle decreases by 66 %, then the radius of a circle decreases by
Options: a. 20 %, b. 18 %, c. 36 %, d. 64 %, e. none of these
answer:
e


question:
Problem: find the greatest number which leaves the same remainder when it divides 16, 46 and 82.
Options: a. 18, b. 8, c. 12, d. 16, e. none of these
answer:
e


question:
Problem: 0.1 + 0.1 ^ 2 + 0.1 ^ 3 =
Options: a. 0.1, b. 0.111, c. 0.1221, d. 0.2341, e. 0.3
answer:

b