3 men split the price of a hotel room = £30 - £10 each
after taking the money the receptionist realises she has made a mistake and should of charged just £25
She takes the £5 up to the room and the men thank her for her honesty and as its an odd amount take £1 each and let her keep the other £2
so after paying £10 then a £1 refund each, the 3 men paid £9 each for the room - £27, then gave the receptionist £2 amounts to £29
so what happened to the other £1??