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 · Compound InterestModerate · 45s
₹10,000 amounts to ₹14,641 at 10% p.a. compounded annually. Find the time.
TopicCompound Interest
Question Typemultiple choice
DifficultyModerate
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
A/P = (1.10)^t ⇒ 1.4641 = 1.1^t ⇒ t = 4 years.
Final Answer: Option A — 4 years