Solved IB ACIO Question
A solved IB ACIO PYQ — decoded step-by-step.
Solve it the standard way once — then learn the shortcut.
Q · Alphabet Testmedium · 45s
Which letter comes next in the series? F, I, L, O, ?
TopicAlphabet Test
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.
Letters increase by 3 positions each time: F(6), I(9), L(12), O(15), next is R(18).
Final Answer: Option A — R