Question

A train running at the speed of 72 km/hrs and cross
a man in 12 seconds. Find the time taken by train to
cross the 240 meter platform.​

Answer 1

Answer:

Length of the platform

= speed of train x extra time taken to cross the platform.

= 72 kmph x12 seconds

Since unit is different so we will make it with same unit.

So ,Now we will Convert 72 kmph into

m/sec

As we know

$1kmph = \frac{5}{8} m\s$

$72kmph = \frac{5}{18} \times 72 = 20m \second$

Therefore, length of the platform

= 20 m/s x 12 sec

= 240 meters.

Thanks

Have a colossal day ahead

@gurmanpreet1023

Answer 2

Answer:

speed of the train= 90Km/hr= (90×5/18) m/s=

25m/s

time taken by the train to cross the signal= time taken by it to cover 250m

=250m/ 25m/s = 10s

Step-by-step explanation:

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