Answer:
Average speed: 0.1 km/min
Step-by-step explanation:
The average speed of a body is the ratio between the total distance covered and the time taken:
where
d = distance covered
t = time taken
In this problem, we have:
- Distance covered is the sum of the two distances:
d = 6.0 + 1.0 = 7.0 km
- Time taken is the sume of the two times:
t = 54 + 16 = 70 min
Therefore, the average speed is
