Three guys go to the bar and get £30 worth of drinks. They pay £10 (10*3=30) each and the waitress takes the money. Before she puts it in the till the manager notices the guys and tells her “I know these guys, give them a £5 discount”
On the way to their table the waitress decides to give the guys £3 back and keep £2 as a tip.
The guys take a pound each, so instead of paying £10 each they end up paying £9 each (9*3=27).
And the question is: if they ended up paying £27 and the waitress kept £2 where did the last pound go?
In: 397
25+2=27; each get a dollar back +3=30
It purposefully confuses you to think: 30-2=/=27 which honestly is irrelavent but because of the wording seems applicable
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