Multiple choice

Select the term that will come next in the following series. $3, 27, 243, 2187, ___$

  1. $13561$
  2. $21377$
  3. $27139$
  4. $19683$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The series is 3, 27, 243, 2187. Each term is multiplied by 9 to get the next term: 3 × 9 = 27, 27 × 9 = 243, 243 × 9 = 2187. Therefore, the next term is 2187 × 9 = 19683. This is a geometric progression with a common ratio of 9.

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