Change from a bill split 3 ways

[Davypops]

Can anyone remember how the puzzle went where (eg) 3 people split a meal bill by putting in (I tihnk) £5 each for a (I think) £11 bill but the £4 change has a £1 adrift somewhere that shouldn't be there...? (probably described it all wring but if you know what I'm on about - please let me know). Very grateful. Thanks.

[york310]

http://en.m.wikipedia...Missing_dollar_riddle

This one?

[Davypops]

Absolutely, thank you very much!

[Old_Geezer]

I recall that one, more of a puzzle than a riddle. IIRC it was carefully worded so you didn't realise some of the money had been counted twice, whilst some of it hadn't been counted at all. Resulting in an unexpected £1 difference that seemed to have just disappeared.