a train covers a distance of 540 kilometre in 8 hours 15 minutes if it covers the first to third of the journey at the speed of 60 kilometre per hour find its speed for the rest of the journey
Answers
we know that,
Speed = Distance/Time
Two third of 540 km = 540* 2/3= 360 km
So, 60 km/h = 360 km/ t hour
=> t hour = 6 hour
For the one third journey train took (8hr15min-6hr)= 2hr15min and the one third journey is 180 km
15 min can be written as 1/4 hour
So,the speed for the rest of the journey
= 180km/(2+1/4) hour
= 180 km/ (9/4) hour
= 180*4/9 km/h
= 20*4 km/h
= 80 km/h
Answer:
we know that,
Speed = Distance/Time
Two third of 540 km = 540* 2/3= 360 km
So, 60 km/h = 360 km/ t hour
=> t hour = 6 hour
For the one third journey train took (8hr15min-6hr)= 2hr15min and the one third journey is 180 km
15 min can be written as 1/4 hour
So,the speed for the rest of the journey
= 180km/(2+1/4) hour
= 180 km/ (9/4) hour
= 180*4/9 km/h
= 20*4 km/h
= 80 km/h
Explanation: