Difference between revisions of "2006 UNCO Math Contest II Problems/Problem 3"
(Created page with "== Problem == The first 14 integers are written in order around a circle. Starting with 1, every fifth integer is underlined. (That is <math>1,6,11,2,7,\ldots</math>). What is ...") |
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==Solution== | ==Solution== | ||
+ | The way the numbers cycle are <math>1, 6, 11, 2, 7, 12, 3, 8, 13, 4, 9, 14, 5, 10</math> for a total of 14 numbers. <math>2006\div14=143R4</math>, with a remainder of 4. The fourth number in the cycle is 2, so the answer is <math>\boxed2</math> | ||
==See Also== | ==See Also== | ||
+ | {{UNCO Math Contest box|n=II|year=2006|num-b=2|num-a=4}} | ||
+ | |||
+ | [[Category:Introductory Algebra Problems]] |
Latest revision as of 18:47, 4 December 2016
Problem
The first 14 integers are written in order around a circle.
Starting with 1, every fifth integer is underlined. (That is ). What is the number underlined?
Solution
The way the numbers cycle are for a total of 14 numbers. , with a remainder of 4. The fourth number in the cycle is 2, so the answer is
See Also
2006 UNCO Math Contest II (Problems • Answer Key • Resources) | ||
Preceded by Problem 2 |
Followed by Problem 4 | |
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 | ||
All UNCO Math Contest Problems and Solutions |