Danielle has to travel 420 km. how much time does she save if he travelled 70 km/h rather than 50 km/h?
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Answer:
2.4 hours = 144 minutes
Step-by-step explanation:
Time taken to travel if speed is 70 km/hr = 420/50 = 6 hrs
Time taken to travel if speed is 50 km/hr = 420/50 = 8.4 hrs
Time sved if the speed is 70km/hr instead of 50km/he is 8.4 - 6 hrs= 2.4 hrs
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