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Buying Chestnuts (Posted on 2004-01-05) Difficulty: 3 of 5
(This "nonsense puzzle" gets its name from the puzzle I saw it from)

A shopper went into a shop and wanted a dollar's worth of chestnuts when he gave the shopkeeper a one dollar bill and was given five chestnuts. "It is not enough; I ought to have a sixth," the shopper remarked. "But you will have five too many if I gave you one chestnut more", the shopkeeper replied.

How many chestnuts should the man have gotten for 3 twenty dollar bills?

See The Solution Submitted by Gamer    
Rating: 3.0000 (3 votes)

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Solution possible solution | Comment 14 of 20 |
Assumption: the price is 1$ for 1 chestnut and the Marketing VP decided a promotional campaign of 14 chestnuts for free at each 3$ spent.

For 1 $ the buyer expects 1+14/3 chestnuts (roundup), i.e. 1+5=6 (he applied the promotion at maximum).

For 1$ the seller considers the integer [1+14/3] i.e. 1+4 =5. The meaning of "5 too many" refers to the fact that the promotion is not applicable for 1$, but he was very generous giving a 4 free chestnuts.

Finally, for 60$, the buyer will receive 60 chestnuts + 20X14 (promotion) = 340 chestnuts.

Hm, I hope my English was clear enough!
  Posted by luminita on 2004-01-06 15:54:05
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