2011 AMC 10A Problems/Problem 17
Problem 17
In the eight-term sequence , the value of is 5 and the sum of any three consecutive terms is 30. What is ?
Solution
We consider the sum and use the fact that , and hence .
Equating the two values we get for the sum, we get the answer .
See Also
2011 AMC 10A (Problems • Answer Key • Resources) | ||
Preceded by Problem 16 |
Followed by Problem 18 | |
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All AMC 10 Problems and Solutions |