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Multiple choice

Find the missing term in the following number series. $1, 4, 9, 16, ?, 36$

  1. 20

  2. 22

  3. 25

  4. 27

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The series is perfect squares: 1², 2², 3², 4², 5², 6². The missing term is 25 (5²). 20, 22, and 27 are not perfect squares and don't fit the pattern.

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