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Puzzling puzzle has me puzzled!

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I'm thoroughly puzzled please help!

 

3 people split the cost of a £30 vacuum cleaner and they all give £10 each to a friend of theirs to go buy it for them. The guy gets to the shop and the price is reduced to £25 so he keeps £2 for his troubles which leaves £3 change. He returns £1 to each of the people who shared in the cost... now if they have each got £1 back, they spent £9 each which makes £27 in total and the guy kept £2 for going. Taking the total to £29... so where's the other £1 gone!? :o

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I don't see where the problem is- the £30 is distributed like this:

 

£25 in the pocket of the person selling the item

 

£2 in the pocket of the person fetching the item

 

£3 (£1 each) in the pockets of the people who bought the item.

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You are trying to add the £2 which is already part of the £27. If you deduct the £2 from the £27 you get the £25 paid to the shop.

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I don't see where the problem is- the £30 is distributed like this:

 

£25 in the pocket of the person selling the item

 

£2 in the pocket of the person fetching the item

 

£3 (£1 each) in the pockets of the people who bought the item.

 

Okay, but if those 3 people got £1 each back, then they spent £9 each, a total of £27. Minus the £2 their friend kept still leaves a pound unaccounted for!?

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You are trying to add the £2 which is already part of the £27. If you deduct the £2 from the £27 you get the £25 paid to the shop.

 

But in that case where did the other £3 go??

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Okay, but if those 3 people got £1 each back, then they spent £9 each, a total of £27. Minus the £2 their friend kept still leaves a pound unaccounted for!?

 

They spent a total of £27, which is comprised of £25 for the vacuum and £2 that the person fetching it pocketed.

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