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 train running at the speed of 20 km / hr crosses a post in 10 seconds. what is the length of the train ?
Options: a. 150, b. 250, c. 415, d. 200, e. 312

SOLUTION: d

PROBLEM: Problem: in what time will a train 50 m long cross an electric pole, it its speed be 360 km / hr ?
Options: a. 0.25, b. 0.5, c. 1.5, d. 2.5, e. 3.5

SOLUTION: b

PROBLEM: Problem: approximately how many revolutions will be made by a car tire with a 10 - inch diameter if the car travels 1 2 mile ?
Options: a. 120, b. 180, c. 1003, d. 1000, e. 1,440

SOLUTION:
c