Solved IB ACIO Question
A solved IB ACIO PYQ — decoded step-by-step.
Solve it the standard way once — then learn the shortcut.
Q · Missing Numbermedium · 45s
Identify the missing number:0, 1, 4, 9, 16, ?
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.
Perfect squares 0²,1²,2²,3²,4², so next is 5²=25.
Final Answer: Option B — 25