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One term in this series is wrong: 2, 5, 10, 17, 26, 38. Which term is wrong?

Competition practiceAlphanumeric / Series

A10
B38
C26
D17

Step-by-Step Solution

The terms follow

n^{2} + 1

for

n = 1

to 6: 2, 5, 10, 17, 26, 37. The sixth term should be 37, so 38 is wrong.

Answer: B) 38

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