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MATH'S QUESTION !


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working in a shop, 3 people came in and want to buy the same cd they cost £10 each(altogether£30),as they leave i realise they should have had discount so i give a worker £5 he goes and gives them £1 each and keeps the £2 for his troubles, so for the 3 cds i had £9 each (£9x£3=£27)because i gave them £1 back.and my worker had £2 (£27+£2=£29) wheres the other £1 gone ??

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