Problem:
Which of the following is equal to
1+1+1+111?
Answer Choices:
A. 45
B. 23
C. 35
D. 2
E. 3
Solution:
Simplifying the expression,
1+1+1+111=1+1+211=1+231=1+32=(C)35
The problems on this page are the property of the MAA's American Mathematics Competitions