Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
Solve it the standard way once — then learn the shortcut.
Q · LongitudeMedium · 45s
Q₈. How much time does the Earth take to rotate 1° longitude?
TopicLongitude
Question Typemultiple choice
DifficultyMedium
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Explanation:Earth rotates 360° in 24 hours → 1° in 4 minutes.
Final Answer: Option B — 4 minutes