Question
A car travels from town A to town B at 40 km/h and returns from B to A at 50 km/h. If the distance between A and B is 100 km, find the average speed for the whole journey.
Solution
Distance A to B = 100 km, B to A = 100 km Total distance = 200 km Time from A to B = 100 / 40 = 2.5 hours Time from B to A = 100 / 50 = 2 hours Total time = 2.5 + 2 = 4.5 hours Average speed = Total distance / Total time = 200 / 4.5 = 44.44 km/h Answer: 44.44 km/h
More Time and distance Questions
- A biker travels first half of his journey with a speed of 18 km/h and the other half with a speed of 'x' km/h. If the total distance traveled by him is 180...
- The speed of a train is 36 km/hr and it takes 12 seconds to cross a man. Find the time taken by train to cross a platform if the ratio of the length of the...
- Howrah Express is scheduled to reach Howrah at 8:00 am, but due to the high number of trains the train couldn't get clearance for platform, and it got stuc...
- A man travels from A to B at 40 km/h and returns from B to A at 60 km/h. Find his average speed for the whole journey.
- Two trains start at the same time from A and B and move towards each other at the rates of 10km/h and 27 km/h, respectively. When they meet, it is found th...
- ‘E’ and ‘F’ are going from place ‘R’ to place ‘S’, which is 900 km apart. If ‘E’ started 2.5 hours after ‘F’ but both of them reached ‘S’ at the same time,...
- The ratio of the speed of a car to a bicycle is 4:1 and the bicycle covers 45 km less than the car in the same time interval. If the time taken by the car ...
- A train covers a distance of 84 km at the speed of 42 km/h the next 45 km distance covers with a speed of 30 km/h and last 60 km with the speed of 40 km/h ...
- A car travels at 60 km/h for 1 hour, 45 km/h for 2 hours, and 90 km/h for 1 hour. Find its average speed.
- A truck travels a distance of 240 km in 8 hours. The speed of a van is 25% more than that of the truck, and the speed of a scooter is 20% more than that of...
Relevant for Exams:
