3 people have a meal coming to £30 so they split the bill 3 ways, all throwing £10 in each.
a few minutes later the waiter comes back sayin "sorry but we have overcharged you, the bill only came to £25".
on this they all take £1 back out of the change and give the waiter £2 for a tip
meaning they have all paid £9 for there meals and the waiter has £2
9+9+9=27 plus the 2 off the waiter is 29
wheres the other pound gone...:?
Sorry if this has been posted before............