mediumNumbersAll teasers

The missing dollar

Three guests, a hotel refund, and a story that does not add up. Where is the flaw? From the free puzzle set on Think Fanny — next try Odd one out: 3, 5, 7, 9, 11, 13.

Think Fanny numbers logic puzzle with a board full of equations

The puzzle

Three guests check into a hotel room that costs $30. They each pay $10. Later the clerk realizes the room is only $25, so he gives the bellhop $5 to return.

The bellhop pockets $2 and gives $1 back to each guest.

Now each guest has paid $9, for $27 total. The bellhop has $2. That is $29. Where did the last dollar go?