Distance between two station is 120km. for first trip the
train moves at the
the speed of
80 km/h. For the second
trin train moves 90 km/h. find the average speed .
today is my exam please help me with explaination
Answers
Answered by
0
Answer:
85 km per hour
Explanation:
speed 1= 80km/h
speed2= 90km/h
average speed = (S1 +S2)/2= (90+80)/2 km/h=170/2 km/h= 85km/h
Answered by
0
Average speed=( 90+80)\2
=85
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