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 · AlgebraMedium · 45s
TopicAlgebra
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.
Short Trick:=
Let x = y = 1
Putting the values, we get
(2)*(2) = 4
Basic method:-
Final Answer: Option D - 4