A 100 m long train is going at a speed o

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Time, Speed and Distance

Question:

A 100 m long train is going at a speed of 60 Km/hr. It will cross a 140 m long railway bridge in how much seconds?

Options:

7.2

14.4

21.6

31.6

Correct Answer:

14.4

Explanation:

Speed = \(\frac{Distance }{Time }\)

60 x \(\frac{ 5}{18 }\) = \(\frac{\text{100 + 140} }{Time }\)

\(\frac{ 50}{3 }\) = \(\frac{\text{240} }{Time }\)

Time = \(\frac{\text{240 x 3} }{50 }\)

Time = 14.4 seconds