2012 AMC 10A Problems/Problem 1
- The following problem is from both the 2012 AMC 12A #2 and 2012 AMC 10A #1, so both problems redirect to this page.
Contents
[hide]Problem
Cagney can frost a cupcake every 20 seconds and Lacey can frost a cupcake every 30 seconds. Working together, how many cupcakes can they frost in 5 minutes?
Solution 1
Cagney can frost one in seconds, and Lacey can frost one in seconds. Working together, they can frost one in seconds. In seconds ( minutes), they can frost cupcakes.
Solution 2
In seconds ( minutes), Cagney will frost cupcakes, and Lacey will frost cupcakes. Therefore, working together they will frost cupcakes.
Solution 3
Since Cagney frosts cupcakes a minute, and Lacey frosts cupcakes a minute, they together frost cupcakes a minute. Therefore, in minutes, they frost
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See Also
2012 AMC 10A (Problems • Answer Key • Resources) | ||
Preceded by First Problem |
Followed by Problem 2 | |
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
All AMC 10 Problems and Solutions |
2012 AMC 12A (Problems • Answer Key • Resources) | |
Preceded by Problem 1 |
Followed by Problem 3 |
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | |
All AMC 12 Problems and Solutions |
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