Yesterday my mother asked me to buy some stamps. Stamps, in the land of El Duderino, are available in .02, .07, .10, .15, and .20 cent denominations. For three types of stamp I was asked to buy five of each. For the other two types of stamp, 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 my mother had given me 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?
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He was supposed to buy: five 0.02 stamps, five 0.07 stamps, six 0.10 stamps, five .15 stamps, and six 0.2 stamps.
Close enough, Jacky.
Five lots of .02, .07 and .15 and six lots of .10 and .20. The shopkeeper rightly figured that I required five lots of each of the stamps, which came to $2.70, he also knew I required two more stamps which added up to the difference.
You are today’s winner.
You bought 5 each of .02, .07 and .15 cent denominations and 6 each of .10, and .20 cent denominations