TASK DEFINITION: You are given a mathematical question described with an open-ended vocabulary. Questions in this task involve real-world situations, describing a mathematical problem. You are also given 4 or 5 answer options (associated with "A", "B", "C", "D", "E"). Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D', 'E'. LaTeX mathematical format (the standard way to express mathematical expressions in the typesetting software known as LaTeX) is used to express equations. Each question is solvable with high school math knowledge. Give only one answer for each question.
PROBLEM: A bicyclist riding at 12 miles an hour for 2 hours travels twice the distance a hiker travels walking at 4 miles an hour for how many hours?
(A)2 (B)3 (C)4 (D)5 (E)6

SOLUTION: B

PROBLEM: After selling \(\frac { 1 } { 3 } \) of the muffins he made for the school bake sale, Alan then sold an additional 10 muffins, leaving him with \(\frac { 1 } { 2 } \) of the number of muffins he started with. How many muffins did Alan start with?
(A)30 (B)42 (C)50 (D)60 (E)75

SOLUTION: D

PROBLEM: There are nine classrooms in a particular school. Each classroom has at least 24 students and at most 30 students. Which of the following could be the total number of students in the school?
(A)90 (B)100 (C)200 (D)250 (E)300

SOLUTION:
D