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 man sitting in a train which is traveling at 36 kmph observes that a goods train, traveling in opposite direction, takes 10 seconds to pass him. if the goods train is 240 m long, find its speed
Options: a. 50 kmph, b. 56 kmph, c. 58 kmph, d. 62 kmph, e. 72 kmph

SOLUTION: a

PROBLEM: Problem: a ( 3, w ^ 3 ) is the ( x, y ) coordinate of point located on the parabola y = x ^ 2 - 1. what is the value of w ?
Options: a. 2., b. 4., c. 5., d. 6., e. 9.

SOLUTION: a

PROBLEM: Problem: john is the owner of a company and for thanksgiving he wants to give a turkey to each employee to celebrate the holiday. each turkey cost him $ 25. if he has 85 employees, how much would john need to spend ?
Options: a. $ 2125, b. $ 1320, c. $ 2000, d. $ 1580, e. $ 2000.75

SOLUTION:
a