Solved IB ACIO Question
A solved IB ACIO PYQ — decoded step-by-step.
Solve it the standard way once — then learn the shortcut.
Q · Series (Numeric and Alphanumeric)medium · 45s
Fill in the missing number: 3, 8, 15, 24, 35, ...?
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.
Differences between numbers: 8-3=5, 15-8=7, 24-15=9, 35-24=11. Next difference 13, so next number is 35+13=48.
Final Answer: Option B — 45