Solved UPSC CDS/OTA Question
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Q · InstallmentsModerate · 45s
₹1,80,000 is repaid in 12 months with **equal principal** each month at 15% p.a. simple and outstanding. Find the 7th 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 = ₹15000; Outstanding before 7th = ₹90000; Interest = i·Outstanding; Installment ≈ ₹16125.
Final Answer: Option A — ₹16125.00