Question

a train passes 210m long bridge in 21 S and a signal in 20s. find the speed of the train in km/h​

Answer 1

Answer:

train is running at a speed of

40

km/hr and it crosses a post in

18

seconds. What is the length of the train?

A.

200

metres B.

160

metres

C.

190

metres D.

120

metres

Answer: Option A

Explanation:

Speed

=

40

km/hr

=

40

×

5

18

=

100

9

m/s

Time

=

18

seconds

Distance Covered

=

100

9

×

18

=

200

m

Therefore, length of the train

=

200

m

Step-by-step explanation:

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