A train travels 3 km per minute. What is the train’s speed in miles per hour? There are about 1.6 kilometers in 1 mile. 60 minutes in 1 hour. Round to the nearest tenth. Do not label.
The train travels 3 km per minute, so in one hour (60 minutes), it will travel 3 km/min x 60 min/hr = <<3*60=180>>180 km.
There are 1.6 kilometers in 1 mile, so in miles, the train will travel 180 km / 1.6 km/mi = <<180/1.6=112.5>>112.5 miles.
Therefore, the train's speed is approximately 112.5 miles per hour.