Question

Trains on the line reached an average speed of 125 miles per hour. Approximately, what is this speed in kilometers per hour? (1 mile = 1.6 kilometers)

Answer 1

basically you have to times 125 and 1.6 which will give you 200 so that is 200 kilometers

Answer 2

For this case, the first thing we must do is take into account the following conversion of units:
 1 mile = 1.6 kilometers
 Applying the conversion we have:
 (125 mi / h) * (1.6 km / mi) = 200 km / h
 Answer:
 this speed in kilometers per hour is:
 200 km / h