Problem:
Cagney can frost a cupcake every seconds and Lacey can frost a cupcake every seconds. Working together, how many cupcakes can they frost in minutes?
Answer Choices:
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Solution:
Because seconds is of a minute, Cagney can frost cupcakes in five minutes. Because seconds is of a minute, Lacey can frost cupcakes in five minutes. Altogether they can frost cupcakes in five minutes.
The problems and solutions on this page are the property of the MAA's American Mathematics Competitions