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: If the operation is defined by a b = (b - a)^2/a^2 for all numbers a and b, and a = 0, then what is the result when we evaluate this expression: (-5) (5 5) ?

Option A: 49/9

Option B: 49/16

Option C: 81/16

Option D: 81/25

Option E: 100/81

SOLUTION: Option D

PROBLEM: Question: A bag contains 5 red balls, 5 green balls and 6 white balls. A ball is drawn at
random from the box. What is the probability that the ball drawn is either red or green?

Option A: 2/5

Option B: 3/5

Option C: 1/5

Option D: 7/15

Option E: 5/8

SOLUTION: Option E

PROBLEM: Question: x, a, z, and b are single digit positive integers. x = 1/8 a. z = 1/8 b. (10a + b) (10x + z) could NOT equal

Option A: 28

Option B: 35

Option C: 49

Option D: 63

Option E: 55

SOLUTION:
Option E