There was 3 guys, who needed a place to stay, so they go to a bed+breakfast.
They go to the reception lady and ask, "how much for a room?" The lady replies its £30 so the guys split the cost to stay in the room, they pay £10 each.
Later on, the manager looks at the records, and sees that the lady has charged the guys £30. The manager says "why did you charge them £30? Its only £25?"
And off the lady goes give £5 back to the 3 guys. Shes thinking, how can i split £5 between the 3? So instead, she gives each guy £1 back, and keeps the remaining £2 to herself.
So everybody's happy. Each guy got £1 back, so theyve paid £9 each, while she keeps the other £2. But hold on a sec, wheres the other pound gone?
Each guy £9+£9+£9 = £27, she keeps £2 = £29. We started off with £30??
:) hope you like! I was bored