A train 420 m long passes a pole in 20 s

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Time, Speed and Distance

Question:

A train 420 m long passes a pole in 20 seconds. What is the speed of the train?

Options:

20 m/s

22 m/s

21 m/s

24 m/s

Correct Answer:

21 m/s

Explanation:

Distance = 420m

time = 20sec

Speed = $\frac{distance}{time}$

Speed = $\frac{420}{20}$ = 21 m/s