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 · LogarithmMedium · 45s
If log₁₀₂ = .301 find log₁₀₁₂₅.
TopicLogarithm
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
log₁₀₁₂₅ = log₁₀(1000/8) = log₁₀₀₀ – 3log₂
= 3 – 3 × 0.301 = 2.097
Final Answer: Option A — 2.097