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 · SimplificationEasy · 45s
Simplify: 75 - (5 × 9)
TopicSimplification
Question Typemultiple choice
DifficultyEasy
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Compute using BODMAS. 75 - (5 × 9) = 30
Final Answer: Option D — 30