AnniversaryMath brain teasers require computations to solve.
A French couple celebrates their 50th anniversary with a trip to Florida. One night they buy a bottle of wine that, even by French standards, is premium. They buy it with 130 Euros, and the exchange rate that day is 1.35 dollars per Euro. The restaurant charges a 3 percentage-point premium to exchange currencies. The wine was priced at $171.22 American, and the couple got five American coins back as change. Which five coins did they get?
HintThere are three types of coins.
AnswerThey got one quarter, one dime, and three pennies. With a 1.35 exchange rate, after the three percentage-point premium they get 1.32 dollars per Euro. Paying 130 Euros*1.32 is $171.60 American dollars. The price is $171.22, for a difference of 38 cents. The only way to give that change with five coins is one quarter, one dime, and three pennies.
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