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: what is the normal price of an article sold at $ 72 after two successive discounts of 10 % and 20 % ?
Options: a. $ 92, b. $ 96, c. $ 100, d. $ 104, e. $ 108
answer:
c


question:
Problem: find the simple interest on rs. 72,000 at 16 2 / 3 % per year for 9 months.
Options: a. 7500, b. 6500, c. 9000, d. 9500, e. none of them
answer:
c


question:
Problem: the radius of a wheel is 22.4 cm. what is the distance covered by the wheel in making 2000 resolutions ?
Options: a. 1187 m, b. 1704 m, c. 2816 m, d. 2827 m, e. 2897 m
answer:

c