A train travels 70 kilometers in 4 hours, and then 55 kilometers in 3 hours. What is its average speed?
2 answers:
The average speed:

We have
total distance = 70 km + 55 km = 125 km
total time = 4 h + 3 h = 7 h
The average speed:

Answer:
Distance = 70 + 55 = 125 kilometers
Time = 4 + 3 = 7 hours
Rate = Distance / Time
Rate = 125 / 7 = 17.8571428571 kilometers per hour
Step-by-step explanation:
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