A car covers first 50 km of its journey in 45 minute next 50 km in half an hour and the next 50 km in 1 hour .find its average speed for the journey
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Explanation:
time required for covering 50 km distance=45 mins
Time required for covering next 50 km =30 mins
Time required for next 50km=60 mins
Total time required =45+30+60
=135 mins
average=135/3
=45 mins
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