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Series (Numeric and Alphanumeric) · IB ACIO · Question 4 of 33

Series (Numeric and Alphanumeric): Identify the missing number: 3, 9, 27, 81, ... , 729

Step-by-step solution. Series (Numeric and Alphanumeric) for IB ACIO.

Topic
Series (Numeric and Alphanumeric)
Subject
Reasoning
Difficulty
medium
Solve Time
45-60 sec

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Q · Series (Numeric and Alphanumeric)medium · 45s

Identify the missing number: 3, 9, 27, 81, ... , 729

TopicSeries (Numeric and Alphanumeric)
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.25
Test Duration30 min

Step-by-Step Solution

The complete worked solution.

Every step explained - no skipped algebra.

Each term is multiplied by 3. 81×3=243, 243×3=729.

Final Answer: Option B - 243
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Identify the missing number: 3, 9, 27, 81,..., 729 - Series (Numeric and Alphanumeric) (Reasoning) Solved Question