speed km in to an average speed in km/h
a car travels 30 kilometeres in 15 minutes what is its average speed in km/h
(30 km / 15 min) * (60 mins / 1 hr) ..... 60min/15min = 4
30 km * 4 / 1 hr
120 km / hr
For those of us who don't live in the civilized world, that's
about 74.5 miles per hour