Meenu drives her car for3/2
hours with a constant speed of 66 km/hr and the for another 45 minutes with a
constant speed of 80 km/hr
. What was his average speed
Answers
Answered by
33
Step-by-step explanation:
In the first condition
Speed = 66 km/hr
Time taken = 3/2 hr
Distance traveled = speed * time
= 66 * 3/2
= 99 km
In the second condition
Speed = 80 km/hr
Time taken = 45 min = 3/4 hr
Distance = 80 * 3/4
= 60 km
Total distance traveled = 99+60
= 159 km
Total time taken = 3/2 + 3/4
= 9/4 hr
Average speed = total distance/total time = 159/9/4 = 159*4/9
= 639/9 km/hr
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Answered by
10
the average sepped is in the answer hope you have understood
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