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: the average of first 10 natural numbers is ?
Options: a. 5.6, b. 5.5, c. 5.1, d. 5.8, e. 5.2

SOLUTION: b

PROBLEM: Problem: the denominator of a fraction is 7 greater than the numerator. if the numerator and the denominator are increased by 4, the resulting fraction is equal to 5 " 6. what is the value of the original fraction ?
Options: a. 23 / 30, b. 25 / 32, c. 31 / 38, d. 37 / 44, e. 47 / 54

SOLUTION: c

PROBLEM: Problem: the ages of patrick and michael are in the ratio of 3: 5 and that of michael and monica are in the ratio of 3: 5. if the sum of their ages is 148, what is the difference between the ages of patrick and monica ?
Options: a. 27, b. 48, c. 45, d. 72, e. 18

SOLUTION:
b