In how much time will a 100 m long train

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Time, Speed and Distance

Question:

In how much time will a 100 m long train cross an electric pole if its speed is 144 Km/hr?

Options:

1.5 Sceonds

2.5 Seconds

4.5 Seconds

12.5 Seconds

Correct Answer:

2.5 Seconds

Explanation:

Speed = 144 x \(\frac{5 }{18 }\) m/sec

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

144 x \(\frac{5 }{18 }\) = \(\frac{100 }{Time }\)

40 = \(\frac{100 }{Time }\)

Time = \(\frac{100 }{40 }\)

Time = 2.5 sec