AMC8 1995 Problem 4

A teacher tells the class,

“Think of a number, add 1 to it, and double the result. Give the answer to your partner. Partner, subtract 1 from the number you are given and double the result to get your answer.”

Ben thinks of 6, and gives his answer to Sue. What should Sue’s answer be?

Answer Choices
A. 18
B. 24
C. 26
D. 27
E. 27