A car moves with a speed of 40 km/h for 15 minutees and then with a speed of 60 km/h for the next 15 minutes. Find the total distance covered by the car in these 30 mins.
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Explanation:
400000m/60min
=2000/3×15
=10000
1000m/min
1000×15
=15000
total distance =10000+15000
=25000
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