Problem:
Ahn chooses a two-digit number, subtracts it from , and doubles the result. What is the largest number Ahn can get?
Answer Choices:
A.
B.
C.
D.
E.
Solution:
The largest number is achieved by choosing the smallest number to subtract. The smallest two-digit number is , so the largest answer is .
Answer: .
The problems on this page are the property of the MAA's American Mathematics Competitions