Question

Danielle has to travel 420 km. how much time does she save if he travelled 70 km/h rather than 50 km/h?

Answer 1

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