A train travels at a speed of 30 miles per hour. If 1 mile = 1.6 kilometers, how fast is the train traveling in kilometers per minute?
A- 1.0 km/min
B- 0.4 km/min
C- 0.8 km/min
D- 0.6 km/min
the answer the speed of the train traveling in kilometers per minute can be found by using the following method: v = 30 miles per hour 1 mile = 1.6 kilometers
just do the calculus by changing miles to kilometers 1 mile = 1.6 kilometers, so 30 miles= 1.6 km x 30 = 48 km so the speed of the train is v=30 miles / hour = 48km / h = 48km / 60 mn = 0.8 km/ mn the answer is C- 0.8 km/min
