Problem:
What is the value of (20−1+52+0)−1×5?
Answer Choices:
A. −125
B. −120
C. 51​
D. 245​
E. 25
Solution:
(1−1+25+0)−1×5=251​×5=(C)51​​
The problems on this page are the property of the MAA's American Mathematics Competitions