three plasterers decided that the money in their area wasnt enough, so they went to work in London to earn some big bucks.
instead of going out every night and drinking all of their wages they decide to buy a tv to watch and only go out drinking on a weekend. so they go into a nearly new shop they see a tv up for sale at £30 so each man puts in £10 and they buy the tv.
as they walk out of the door and down the street with the tv the manager comes downstairs and asks where the tv has gone. the cashier tells him hes just this second sold it, when asked why the manager says he was just about to put a reduced price on the tv of £25. the manager being a nice guy sends the young cashier out to chase after the men to give them their change.
while running down the street the young man thinks to himself, if i only give the men £3 back i could keep £2 for myself and both parties would be none the wiser.so he does just that. he gives the men £3 back so the tv has now cost them £9 each and the cashier has the other £2 in his pocket. so 3x9=27 and the other £2 is in the cashiers pocket. where did the missing £1 go........................?