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: If Maurice has $80, and he spends $32.45 on clothes and gives $27.55 to his sister, what fraction of the original $80 does Maurice have left?
(A)\(\frac{1}{5}\) (B)\(\frac{1}{4}\) (C)\(\frac{3}{10}\) (D)\(\frac{1}{2}\) (E)\(\frac{3}{5}\)

Answer: B


Question: If A is 25 kilometers east of B, which is 12 kilometers south of C, which is 9 kilometers west of D, how far, in kilometers, is A from D?
(A)20 (B)\(5\sqrt { 34 } \) (C)\(5\sqrt { 41 } \) (D)\(10\sqrt { 13 } \) (E)1

Answer: A


Question: The number of cells growing in a particular Petri dish doubles every 30 minutes. If at 8:00 am there were 60 cells in the dish how many were there at noon of the same day?
(A)\(60 \times 2^ { -8 } \) (B)\(60 \times 2^ { -4 } \) (C)\(60 \times 2^4\) (D)\(60 \times 4^4\) (E)\(60 \times 4^8\)

Answer:
D


