Question 52
A car travels 60km in the first hour , 65km in the second hour , 70km in the third hour, then the average speed of the car is
Solution
Average speed=Total distance/Total time
Distance 1=60*1=60 km
Distance 2=65*1=65 km
Distance 3=70*1=70 km
Total distance=195 km
Total time=3 hours
Average speed=195/3
=65 km/hr
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