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: a student travels from his house to school at 10 km / hr and reaches school 2 hours late. the next day he travels 18 km / hr and reaches school 1 hour early. what is the distance between his house and the school ?
Options: a. 65.0, b. 67.5, c. 70.0, d. 72.5, e. 75.0

SOLUTION: b

PROBLEM: Problem: the average of 11 10 prime numbers which are odd is ?
Options: a. 17.72, b. 18.52, c. 19.63, d. 16.53, e. 15.63

SOLUTION: a

PROBLEM: Problem: two dice are rolled. what is the probability that the sum on the top face of both the dice will be greater than 9 ?
Options: a. 3 / 8, b. 2 / 3, c. 1 / 2, d. 1 / 3, e. 1 / 6

SOLUTION:
e