Solved IB ACIO Question
A solved IB ACIO PYQ - decoded step-by-step.
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Q · Series (Numeric and Alphanumeric)medium · 45s
What is the next number: 5, 10, 20, 40, 80, ... ?
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 doubles the previous term: 5×2=10, 10×2=20, etc., so next term = 80×2 = 160.
Final Answer: Option C - 160