Question

A 225 metre long train crosses a 45 Metre platform in 18 seconds what is the speed of the train in km/h​

Answer 1

Answer:

the speed of the train is 54km/hr

Step-by-step explanation:

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Answer 2

Answer:

54 km per hour

Step-by-step explanation:

since train has to travel it's length and platform also

then,the total distance travelled by train is 225+45=270m

time is 18 second

i.e it's speed is 270/18 m/s

but we need speed in km per hour then

we would simply multiply the m/s speed by 18/5

i.e 270/18×18/5 ,18 and 18 got cancel

we left with 270/5=54 km per hour.

hope it helps