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Puzzle ZOKI 



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Yesterday I was asked to buy some stamps.

Stamps, in the land of BrainBashers, are available in 2p, 7p, 10p, 15p and 20p denominations.

For three types of stamp, I was asked to buy five of each.

For the other two types of stamps, I was asked to buy six of each.

Unfortunately, I forgot which I was supposed to buy five of and which to buy six of.

Luckily I had been given the exact money required to buy the stamps, £3.00 and the shopkeeper was able to give me the correct stamps.

Which stamps did I buy?

Puzzle Copyright © Kevin Stone

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Answer
Five lots of 2p, 7p and 15p and six lots of 10p, and 20p.

The shopkeeper rightly figured that I required five lots of each of the stamps, which came to £2.70.

The shopkeeper also knew that I required two more stamps which added up to the difference.

 

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