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
Select the letter which completes the series: Z, X, U, Q, ?
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 decrease by 2, 3, 4, and 5: Z(26), X(24), U(21), Q(17), M(12).
Final Answer: Option B — M