Q: A train running at 60 km/h crosses a pole in 9 sec. What is its length?
Correct! The answer is 150m
Pattern: Time & Work — Pipe Problems
TCS NQT · Infosys · Wipro
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Concept 1
A train running at 60 km/h crosses a pole in 9 seconds. What is the length of the train?
Answer
Speed = 60 × 5/18 = 50/3 m/s
Length = Speed × Time = 50/3 × 9 = 150 meters
Breakdown

Convert km/h to m/s by multiplying with 5/18. When a train crosses a pole, distance = length of train.

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