Solved UPSC CDS/OTA Question
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Q · InstallmentsModerate · 45s
₹1,32,000 is repaid in 12 months with **equal principal** each month at 12% p.a. simple and outstanding. Find the 4th installment.
TopicInstallments
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.
Principal part = ₹11000; Outstanding before 4th = ₹99000; Interest = i·Outstanding; Installment ≈ ₹11990.
Final Answer: Option A — ₹11990.00