Question

a car travels a distance of 100 KM into war its average speed is 50 km per hour.the car might not be travelled at 50 km per hour all the time sometimes it might have travel faster and sometimes lower than this ​

Answer 1

Answer:

90km/hr

Explanation:

90 km/h

Total time for the journey, t=100/45=20/9 hrs

Time for first 50 km, t

1

=50/30=5/3 hr

So, time for remaining journey, t

2

=20/9−5/3=5/9 hrs

Speed for remaining journey v

2

=

5/9

50

=90 km/h

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