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: a soccer team played 280 games and won 65 percent of them. how many games did it win ?
Options: a. 182, b. 100, c. 104, d. 150, e. 124
answer:
a

question:
Problem: a person crosses a 800 m long street in 5 minutes. what is his speed in km per hour ?
Options: a. 1.23, b. 2.86, c. 4.36, d. 9.25, e. 9.61
answer:
e

question:
Problem: what is the ratio of 3 / 7 to the product 3 * ( 7 / 3 ) ?
Options: a. 3: 7, b. 1: 3, c. 3: 21, d. 1: 7, e. 3: 49
answer:
e