Multiple choice

In the following series, find the missing term.\newline\newline17, 30, 81, 308, 1515, ?

  1. 9504

  2. 9405

  3. 9450

  4. 9054
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The pattern is: multiply by increasing integer (2,3,4,5,6) and subtract the square of that integer. 17×2-4=30, 30×3-9=81, 81×4-16=308, 308×5-25=1515. Therefore, 1515×6-36=9054. This combines both multiplication and subtraction in a progressive pattern.

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