#### b_mcgaffey10

##### New member

- Joined
- Apr 23, 2011

- Messages
- 1

Suppose there are 500 pennies, all facing "heads", lined up on a table. Along with the 500 pennies, are 500 people lined up.

The 1st person flips over every penny.

The 2nd person flips over every 2nd penny, starting with the second penny.

The 3rd person flips over every 3rd penny, starting with the third penny.

The 4th person flips over every 4th penny, starting with the fourth penny.

The penny flipping continues this pattern through all 500 people.

ALL the information I am given.

Wow, what a headache.

so the 250th person in line flips over the 250th penny and the 500th penny... but this does not mean this is where the penny flipping ends, because the 251st person will flip penny #251, one final time, and the 252nd person will flip penny #252 one final time... ect ect ect.