Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
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Q · LongitudeMedium · 45s
Q₁₇. How many degrees of longitude does the Earth rotate in one hour?
TopicLongitude
Question Typemultiple choice
DifficultyMedium
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Explanation:360° / 24 hrs = 15° per hour.
Final Answer: Option B — 15°