A car moves with a speed of 120 km/h for 20 minutes and then 60 km/h for the rest 15 minutes. Find the total distance covered by car.
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Explanation:
Speed of car in first 20 minutes = 120 km/h
Distance covered = speed × Time taken
60 minutes = 1 hour
15 minutes = 6015 hour
Distance covered = 240×6015=10km
Speed of car in next 15 minutes = 60 km/h
Distance covered = 60×6015=15km
∴ Total distance covered = (10+15)km = 25 km
∴ 25 km is correct
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