A Logic Party

Logic Level 3

I organized a party which had 100 guests (including me). Several of us shook each other's hands (once), and we all shook at least one person's hand.

When we lined up, we found out that the first guest shook 1 hand, the second guest shook 2 hands, the third guest shook 3 hands, so on and so forth, with the ninety-nineth guess shaking 99 hands.

How many hands did the one hundredth guess shake?

×

Problem Loading...

Note Loading...

Set Loading...