awaaz cover 630 km in 9 hours if it completes the first two third of the journey at 60 km per hour calculate its speed for the rest of the journey
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Answer:
105 km per hour
Explanation:
Total dist =630 km
total time=9hrs
2/3rd journey =2/3*630=420km
speed=60 km per hour
time taken = 420/60=7 hrs
dist left = 630-420 = 210 km
time left = 9-7=2hrs
speed = dist/time
210 km/2 hrs= 105 km per hr (speed)
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