A person goes from his house to office on foot at the speed of 4km/h and returns by cycle at the speed of 16km/h. his average speed is......km/h
Answers
Answered by
1
Step-by-step explanation:
16+4=20total distance
1+1=2 h
distance/time
20/2
10 is the average speed
Answered by
2
6.4 km/h is the ans
In these cases arithmatic mean gives the ans:
2/average velocity = 1/4 +1/16
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