Question

Hassan skated 11 kilometers in 57 minutes. He then turned around and took the same path back to his starting point, arriving 2 hours and 33 minutes later. What was his average speed during the trip?

A) 8 km/h
B) 9 km/h
C) 1010 km/h
D) 11 km/h

Answer 1

Hassan's average speed during the trip was approximately 6.288 km/h.

Step-by-step explanation:

To find Hassan's average speed during the trip, we need to calculate the total distance traveled and the total time taken.

Hassan skated 11 kilometers in 57 minutes to reach his destination. He then took the same path back and arrived 2 hours and 33 minutes later. This means he skated for a total of 57 + 153 (2 hours and 33 minutes in minutes) = 210 minutes.

His total distance traveled is 11 km + 11 km = 22 km. To find his average speed, we divide the total distance by the total time: 22 km / 210 min = 0.1048 km/min.

Converting this to km/h, we multiply by 60: 0.1048 km/min x 60 min/h = 6.288 km/h

Therefore, Hassan's average speed during the trip was approximately 6.288 km/h.