Solved IB ACIO Question
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Q · Alphabet Testmedium · 45s
What comes next in the series? B, F, M, Y, ?
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.
Positions: B=2, F=6, M=13, Y=25
Differences:F − B = 4M − F = 7Y − M = 12
Pattern: Differences are +4, +7, +12 → increasing by +3, then +5… next increase = +7
So, next difference = 12 + 7 = 19
Next letter = 25 + 19 = 44 → wrap around (44 − 26 = 18) → 18th letter = R
Final Answer: Option C - R