Question
Download Solution PDFA train crossed a 120 m long platform in 12 seconds and 165 m long platform in 15 seconds. The speed of the train was:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFFormula Used:
Distance = Speed × Time
Calculations:
Let the speed of the train be ‘x’ m/s and the length of the train be ‘y’ m
A train crossed a 120 m long platform in 12 seconds,
⇒ 12 × (x) = 120 + y ----(1)
A train crossed a 165 m long platform in 15 seconds,
⇒ 15 × (x) = 165 + y ----(2)
Equation (2) - Equation (1) we get,
⇒ 3x = 45
⇒ x = 15 m/s = 15 × (18/5) km/h = 54 km/h
∴ The speed of the train is 54 km/h.Last updated on Jun 2, 2025
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