Anil's average speed for his total journey from Bristol to Swansea is approximately 72.31 km/h.
To find Anil's average speed for his total journey from Bristol to Swansea, we need to calculate the total distance traveled and the total time taken.
1. Calculate the total distance:
Anil traveled 72 km from Bristol to Cardiff and then an additional 69 km from Cardiff to Swansea. Therefore, the total distance traveled is 72 km + 69 km = 141 km.
2. Calculate the total time:
Anil took 48 minutes to travel from Bristol to Cardiff and drove at an average speed of 60 km/h from Cardiff to Swansea. To find the time taken for the second part of the journey, we can use the formula: Time = Distance / Speed.
The time taken from Cardiff to Swansea is 69 km / 60 km/h = 1.15 hours.
To convert the time taken for the first part of the journey from minutes to hours, we divide 48 minutes by 60 (since there are 60 minutes in an hour): 48 minutes / 60 = 0.8 hours.
Now, we can calculate the total time taken for the entire journey: 0.8 hours + 1.15 hours = 1.95 hours.
3. Calculate the average speed:
Average speed is calculated by dividing the total distance traveled by the total time taken.
Average speed = Total distance / Total time = 141 km / 1.95 hours.