JAWbone5468 JAWbone5468

15-12-2021
Mathematics

contestada

a train traveled 3/5 of a journey in 7 hours and then traveled the remaining 400 km in 3 hours. what was the average speed

Respuesta :

elliely24 elliely24

15-12-2021

400 km = 2/5 of the journey
200 km = 1/5
1000 km is the whole journey. It took 10 hours (7+3) and 1000/10= 100km/h as the average speed

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