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Look at 7, 6, 10, 27, 104, ? and pick the term that comes next.

Competition practiceNumber Series

A515
B520
C510
D519

Step-by-Step Solution

Multiply by n and subtract n:

7 \times 1 - 1 = 6, 6 \times 2 - 2 = 10, 10 \times 3 - 3 = 27, 27 \times 4 - 4 = 104, 104 \times 5 - 5 = 515

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Answer: A) 515

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