Answer :
Answer:
Step-by-step explanation:
To find Nabeel's average speed for the entire journey, we need to calculate the total time taken and then use the formula for average speed.
Calculate the total time taken for the journey:
Time for the first train journey: 12 minutes
Time for the second train journey: 122 minutes
Total time = 12 minutes + 122 minutes = 134 minutes
Convert the total time from minutes to hours (since speed is typically measured in miles per hour):
Total time in hours
=
134
minutes
60
Total time in hours=
60
134 minutes
Total time in hours
=
2.23333
…
hours
Total time in hours=2.23333… hours
Calculate the average speed using the formula:
Average speed
=
Total distance
Total time
Average speed=
Total time
Total distance
Given the total distance travelled was 197 miles, substitute into the formula:
Average speed
=
197
miles
2.23333
…
hours
Average speed=
2.23333… hours
197 miles
Average speed
≈
88.24486
…
mph
Average speed≈88.24486… mph
Round the average speed to 22 decimal places:
Average speed
≈
88.24486104218362282846
…
mph
Average speed≈88.24486104218362282846… mph
Therefore, Nabeel's average speed for the entire journey, rounded to 22 decimal places, is
88.24486104218362282846
88.24486104218362282846 mph.
