Question
Five years ago, Rahul was twice as old as his brother. If Rahul is 10 years older than his brother, what is Rahul’s present age?
This question was previously asked in
RRB NTPC 2025 Under Graduate CBT 1 Question Paper PDF (20-Jun-2026) (Shift 3)
The correct answer is
25 years
Let the brother’s present age be \(b\) years, so Rahul’s present age = \(b+10\) years.
Five years ago: Rahul was \(b+5\) and brother was \(b-5\).
Given \(b+5 = 2(b-5)\).
Solving: \(b+5 = 2b-10 \Rightarrow b = 15\).
So Rahul’s present age = \(15+10 = 25\) years.
Hence, Rahul is 25 years old at present.
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