Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
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Q · AgeModerate · 45s
The sum of ages of A and B is 50 years. Four years ago, the ratio of their ages was 3:2. Find the present age of A.
TopicAge
Question Typemultiple choice
DifficultyModerate
Marking+1 / −0.33
Test Duration30 min
Q 1 / 30Next question →
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Let present ages be 3x and 2x; 3x+2x=50 ⇒ x=10 ⇒ A=30.
Final Answer: Option A — 30 years