Question

train covers half of its journey with a speed of 30 metre per second and the other half with a speed of 40 metre per second calculate the average speed of the train
For correct answer I will mark as the brainliest​

Answer 1

Answer:

train covers half of its journey with a speed of 30 metre per second and the other half with a speed of 40 metre per second calculate the average speed of the train

For correct answer I will mark as the brainliest

Answer 2

Answer:

t1 and t2 are durations for covering half total distance. s/2 = 30 * t1 s/2 = 40 * t2. So total time duration = t1+t2 = s*[1 ...