Question

A 120m long train is crosses the platform double its length in 30sec. What is the speed of the train ? answer​

Answer 1

Answer:

speed =distance/time

the length covered is 120*2=240 metres

time is 30 seconds

speed equals 240/30=8m/s

Answer 2

Answer:

speed = distance ÷ time

Here, distance =2×120=240 m

time = 30sec

speed = 240÷ 30

speed = 240/30=8 m/sec