instruction:
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.
question:
At a certain grocery store, \(a\) customers each spend an average of \$30 every \(b\) hours. In dollars, how much do customers spend at this store in \(c\) hours?
(A)\(\frac { 30c } { ab } \) (B)\(\frac { bc } { 30a } \) (C)\(\frac { 30bc } { a } \) (D)\(\frac { 30ac } { b } \) (E)\(\frac { 30b } { ac } \)
answer:
D


question:
If an alarm beeps at a constant rate of 16 beeps per minute, how many minutes will it take to beep 88 times?
(A)5 (B)5.5 (C)6.5 (D)23.5 (E)1408
answer:
B


question:
Sam's locker combination consists of three two-digit numbers. The combination satisfies the three conditions below. One number is even. One number is a multiple of 3. One number is the day of the month on which school started. If each number satisfies exactly one of the conditions, which of the following could be the locker combination?
(A)\(10-23-15\) (B)\(24-18-13\) (C)\(12-20-26\) (D)\(15-21-26\) (E)\(34-30-21\)
answer:

A