Question Bank • QB_GA_GATE_002 NAT • 2 Marks

Section 8: General Aptitude

Quantitative Aptitude

Subtopic: Data Interpretation

Question Statement:

A train running at a uniform speed of $72\text{ km/h}$ crosses a railway platform of length $250\text{ m}$ in $20\text{ seconds}$. The length of the train is ________ $\text{m}$ (in integer).

Answer Key:

150

Step-by-Step Solution & Explanation

Speed in m/s: $72 \times \frac{5}{18} = 20\text{ m/s}$. Total distance = $20\text{ m/s} \times 20\text{ s} = 400\text{ m}$. Train length = $400 - 250 = 150\text{ m}$. Hence, the length is **150** $\text{m}$.
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