GATE 2025 Chemical Engineering, Q5 · General Aptitude
The correct answer is B, Option B.
Question
The figures I, II and III are parts of a sequence, each showing a circle with a shaded sector of increasing angular size. Which one of the following options comes next in the sequence at IV?

Official answer: Option B
Why
GATE 2025 official key: (B), based on the visual progression shown across panels I–III of the official figure.
Explanation cross-checked for consistency. Final answer matches the official IIT answer key.