Difference between revisions of "2005 AMC 10A Problems/Problem 11"
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<math>n=4\Longrightarrow \mathrm{(B)}</math> | <math>n=4\Longrightarrow \mathrm{(B)}</math> | ||
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CHECK OUT Video Solution: https://youtu.be/mnMsCKv0VVA | CHECK OUT Video Solution: https://youtu.be/mnMsCKv0VVA | ||
Revision as of 20:04, 30 October 2020
Contents
Problem
A wooden cube 
units on a side is painted red on all six faces and then cut into 
unit cubes. Exactly one-fourth of the total number of faces of the unit cubes are red. What is ?
Solution
Since there are 
little faces on each face of the big wooden cube, there are 
little faces painted red.
Since each unit cube has 
faces, there are 
little faces total.
Since one-fourth of the little faces are painted red,
Video Solution
CHECK OUT Video Solution: https://youtu.be/mnMsCKv0VVA
See also
| 2005 AMC 10A (Problems • Answer Key • Resources) | ||
| Preceded by Problem 10 |
Followed by Problem 12 | |
| 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 | ||
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions. 
