Solved IB ACIO Question
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Q · Missing Numbermedium · 45s
Find the missing number: 2, 5, 10, 17, ?
TopicMissing Number
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.
Numbers one less than squares: 2=3-1, 5=6-1, 10=11-1, 17=18-1, next 26=27-1.
Final Answer: Option C - 26