Difference between revisions of "2008 AMC 8 Problems/Problem 2"
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==Solution 2== | ==Solution 2== | ||
− | We can easily see that <math>C=8</math>, which makes only <math>(A)</math> <math>8761</math> and <math>(B)</math> <math>8762</math> possible. Since the only difference between answer choices <math>A</math> and <math>B</math> is the last digit and that the last digit in the code word "CLUE" is <math>E</math>, we can just find that <math>E=1</math> and that the answer is <math>(A)</math> <math>8761</math>. | + | We can easily see that <math>C=8</math>, which makes only <math>(A)</math> <math>8761</math> and <math>(B)</math> <math>8762</math> possible. Since the only difference between answer choices <math>A</math> and <math>B</math> is the last digit and that the last digit in the code word "CLUE" is <math>E</math>, we can just find that <math>E=1</math> and that the answer is <math>/boxed{(A)</math> <math>8761}</math>. |
==See Also== | ==See Also== | ||
{{AMC8 box|year=2008|num-b=1|num-a=3}} | {{AMC8 box|year=2008|num-b=1|num-a=3}} | ||
{{MAA Notice}} | {{MAA Notice}} |
Revision as of 10:16, 25 May 2024
Contents
Problem
The ten-letter code represents the ten digits , in order. What 4-digit number is represented by the code word ?
Solution
We can derive that , , , and . Therefore, the answer is ~edited by Owencheng
Solution 2
We can easily see that , which makes only and possible. Since the only difference between answer choices and is the last digit and that the last digit in the code word "CLUE" is , we can just find that and that the answer is $/boxed{(A)$ (Error compiling LaTeX. Unknown error_msg) $8761}$ (Error compiling LaTeX. Unknown error_msg).
See Also
2008 AMC 8 (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 AJHSME/AMC 8 Problems and Solutions |
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions.