9. In a journey of 300 km, a truck driver stopped for lunch in between for 45 minutes and are
for tea for 15 minutes. It took him 7 hours to complete the journey. Find the speed at which the truck travelled
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Answer:
45min +15 min = 66 min 1h
time =7-1 = 300 km
speed =distance/time
=300 /6
=50 km /hr
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