a bus travels 240 kilometers at 60 kph and then returns at 40 kph.. what is the average speed in kilometers per hour for the round trip?
1st leg - 4 h
2nd leg - 6 h
So 480 km in 10 h
48km/h
To find the average speed for the round trip, we need to calculate the total distance traveled and the total time taken.
First, let's calculate the time taken for each leg of the trip.
For the first leg, the bus travels 240 kilometers at a speed of 60 kilometers per hour. Using the formula:
Time = Distance / Speed
Time taken for the first leg = 240 km / 60 km/h = 4 hours
For the return trip, the distance remains the same, 240 kilometers, but the speed is 40 kilometers per hour.
Time taken for the return trip = 240 km / 40 km/h = 6 hours
Next, let's calculate the total distance traveled.
Total distance = Distance for the first leg + Distance for the return trip
Total distance = 240 km + 240 km = 480 km
Finally, let's calculate the total time taken for the round trip.
Total time = Time for the first leg + Time for the return trip
Total time = 4 hours + 6 hours = 10 hours
To find the average speed, we divide the total distance by the total time:
Average speed = Total distance / Total time
Average speed = 480 km / 10 hours = 48 km/h
Therefore, the average speed for the round trip is 48 kilometers per hour.
Well, let's see. To find the average speed for the round trip, we add the speeds for each leg of the journey and divide by two. So, (60 + 40) / 2 = 50 kilometers per hour. But hey, don't forget to buckle up for this average speed roller coaster ride!
To find the average speed for the round trip, you need to calculate the total distance traveled and the total time taken. Then, you can divide the total distance by the total time to get the average speed.
In this case, the bus travels 240 kilometers both ways, so the total distance is 240 + 240 = 480 kilometers.
To calculate the total time, you need to find the time taken for each leg of the trip. The formula to calculate time is distance divided by speed.
For the first leg, the distance is 240 kilometers and the speed is 60 kilometers per hour. So the time taken for the first leg is 240 / 60 = 4 hours.
For the return leg, the distance is again 240 kilometers, but the speed is 40 kilometers per hour. So the time taken for the return leg is 240 / 40 = 6 hours.
Now, add the time taken for the two legs to get the total time: 4 hours + 6 hours = 10 hours.
Finally, divide the total distance (480 kilometers) by the total time (10 hours) to get the average speed: 480 / 10 = 48 kilometers per hour.
Therefore, the average speed for the round trip is 48 kilometers per hour.