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Question:
The first four terms in a sequence are shown below. What is the sixth term in the sequence?
{3, 6, 11, 18, …}
A
38
explanation
Begin by examining the sequence for a pattern. In order to go from 3 to 6, 3 must be added; moving from 6 to 11 requires 5 to be added; moving from 11 to 18 requires 7 to be added. The pattern emerges here—adding by consecutive odd integers.
The 5th term is equal to 18 + 9 = 27, and the 6th term is equal to 27 + 11 = 38.
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4 years ago
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4 years ago
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4 years ago
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