A body covers a distance with a speed of 40 km/h in 3 hours, next few kilometers with a speed of 80 km/h in an hour and at last covers the distance in 60 km/h in 2 hours. Find the average speed of the body.
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Answer:
◦•●◉✿Let the each half of the running time be t.
During first half time, speed of car is 80 km/h
Distance covered d
1
=80t km
During second half time, speed of car is 40 km/h
Distance covered d
2
=40t km
Total distance covered d=d
1
+d
2
=80t+40t=120t
Total time taken T=2t
Average speed v
avg
=
T
d
=
2t
120t
=60 km/hr✿◉●•◦
Explanation:
◦•●◉✿I hope it's helpful for you✌✿◉●•◦
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