Solved UPSC CDS/OTA Question
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Q · Simple InterestDifficult · 45s
A amounts to ₹7,625 in 5 years at 9% p.a. simple interest. 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.
So:
SI = (P × 9 × 5) / 100 = 0.45P
→ A = P + 0.45P = 1.45P
→ 1.45P = 7625
→ P = 7625 / 1.45 = ₹5,250
Final Answer: Option C - ₹5250.00