rohan moves with the speed of 6km/h for 2 hrs and with a speed of 4km/h for the next 3 hrs .find the average speed of rohan and the total distance moved.
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The average speed of the girl is 4.8 km/h and the total distance is 24 km.
The girl moves with different velocity in different span of time. The average speed is calculated by knowing total distance covered in total time.
Given:
Speed 1 = 6 km/hr
Time 1 = 2 hr
Speed 2 = 4 km/hr
Time 2 = 3 hr
As we know that
Total distance covered = d1 + d2
Total distance d = d1 + d2
d = 12 + 12
d = 24 km
Total time t = time1 + time2
t = 2 + 3
t = 5 hr
Average speed = Total distance / Total time
I hope my answer will right.
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