Q: 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: by selling an article at rs. 600, a profit of 60 % is made. find its cost price ?
Options: a. 228, b. 267, c. 375, d. 480, e. 811
A:
c