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Question : A train of length 342 m is running at 54 km/hr. In how much time (in seconds) will it cross a bridge of length 438 m?

Option 1: 48

Option 2: 50

Option 3: 54

Option 4: 52


Team Careers360 23rd Jan, 2024
Answer (1)
Team Careers360 24th Jan, 2024

Correct Answer: 52


Solution : Given: Speed of train = 54 km/hr
= $54 \times \frac{5}{18}$ = 15 m/s
Length of bridge = 438 m
Total distance = train length + bridge length
Total length = 342 + 438 = 780
So, the required time = $\frac{780}{15}$ = 52 sec
Hence, the correct answer is 52.

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