A fraight train one kilometer long goes through a tunnel that is one kilometer long. if the train is travelin?

Question

math

a fraight train one kilometer long goes through a tunnel that is one kilometer long. if the train is traveling at a speed of 15 kilometers per hour, how many minutes does it take the train to pass through the tunnel?

Answer 1

total distance = length of train + length of tunnel = 2 km

speed = 15 km/h = 1/4 km/m

time = 2 km / 1/4 km/m = 8 minutes

Extra credit: The word you're looking for is "freight".