A customer at a 7-11 store selected four items to buy, and was told that the cost was $7.11. He was curious that the cost was the same as the store name, so he enquired as to how the figure was derived. The clerk said that he had simply multiplied the prices of the four individual items. The customer protested that the four prices should have been ADDED, not MULTIPLIED. The clerk said that that was OK with him, but, the result was still the same: exactly $7.11. What were the four prices? (Do NOT count sales tax.)
(In reply to
Alternative Solution by Michael Cottle)
I don't think so, Michael. "Exactly" has to mean no rounding was required. What else could "exactly" possibly mean...that isn't already implied in the problem?
It's certainly easy to have fractions of a cent in currency--look at stock prices.
re: Alternative Solution
