TASK DEFINITION: You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.
PROBLEM: Question: On an order of 5 dozen boxes of a consumer product, a retailer receives an extra dozen free. This is equivalent to allowing him a discount of:

 Option A: 15%

 Option B: 16 1/6%

 Option C: 16 2/3%

 Option D: 20%

 Option E: 30%

SOLUTION: Option C

PROBLEM: Question: A certain basketball team played seven games and scored an average of 50 points per game. If, in the team’s first five games, it scored 45, 39, 61, 50, and 43 points, what was the average (arithmetic mean) number of points scored over the last two games?

 Option A: 65

 Option B: 81

 Option C: 82

 Option D: 56

 Option E: Cannot be determined from the information given.

SOLUTION: Option D

PROBLEM: Question: In a race of 4Kms A beats B by 100m or 25 seconds, then time taken by A is

 Option A: 8 min 15 sec

 Option B: 10 min 17 sec

 Option C: 15 min 8 sec

 Option D: 16 min 15 sec

 Option E: 17 min 15 sec

SOLUTION:
Option D