Solved EPFO APFC Question
A solved EPFO APFC PYQ — decoded step-by-step.
Solve it the standard way once — then learn the shortcut.
Q · Basics of Computer Medium · 45s
Which file extension is used for video files?
TopicBasics of Computer
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.25
Test Duration200 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
The .mp₄ extension is used for video files.
Final Answer: Option C — .mp₄