Solved UPSC CDS/OTA Question
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Q · Simple InterestDifficult · 45s
At 12% p.a., the difference between the simple interest for 2 years and for 3.5 years is ₹630. Find the principal.
TopicSimple Interest
Question Typemultiple choice
DifficultyDifficult
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
P = 630×100/(12×1.5) = ₹3500.
Final Answer: Option B - ₹3500.00