Solved UPSC CDS/OTA Question
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Q · Simple InterestEasy · 45s
Find the difference between simple interests on ₹4200 and ₹3500 at 9% p.a. for 2.5 years.
TopicSimple Interest
Question Typemultiple choice
DifficultyEasy
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
Difference = (P₁−P₂×R×T)/100 = (700×9×2.5)/100 = ₹157.50.
Final Answer: Option C - ₹157.50