sofia took 3 hours to reach her working place which is at the distance of 129 km. she came back by car at a speed of 60km/h. find the average speed of her journey?
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A car takes 2 hours to reach a destination by travelling at the speed of 60 km/h. when the car travels at the speed of 80 km/h it takes
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Answer:
Correct option is A)
Let the car takes x hours to reach a destination by travelling at the speed of 80 km/h. Then,
Speed (in km/hr) 60 80
Time (in hours) 2 x
Clearly, more the speed, less will be the time taken. So, it is a case of inverse proportion.
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