2013 AMC 8 Problems/Problem 22
Problem
Toothpicks are used to make a grid that is toothpicks long and
toothpicks wide. How many toothpicks are used altogether?
Video Solution for Problems 21-25
Video Solution
https://youtu.be/nNDdkv_zfOo ~savannahsolver
Solution
There are vertical columns with a length of
toothpicks, and there are
horizontal rows with a length of
toothpicks. An effective way to verify this is to try a small case, i.e. a
grid of toothpicks. Thus, our answer is
.
See Also :)
2013 AMC 8 (Problems • Answer Key • Resources) | ||
Preceded by Problem 21 |
Followed by Problem 23 | |
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All AJHSME/AMC 8 Problems and Solutions |
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