Problem:
The squares on a piece of paper are numbered as shown in the diagram. While lying on a table, the paper is folded in half four times in the following sequence:
fold the top half over the bottom half
fold the bottom half over the top half
fold the right half over the left half
fold the left half over the right half.
Which numbered square is on top after step
Answer Choices:
A.
B.
C.
D.
E.
Solution:
A fold from the top leaves on the bottom.
A fold from the bottom leaves on the bottom.
A fold from the right leaves and on the bottom.
A fold from the left leaves on the bottom with number moving to the top.
Answer: .
The problems on this page are the property of the MAA's American Mathematics Competitions