Yep. That's why they call it "kilometers per hour" -- because you go that many kilometers every hour you travel at that speed. So in the first hour, he managed to travel 63 kilometers and in the second hour he managed and additional 63 kilometers, and 63 + 63 is equal to 2 times 63 is equal to 126.
John
My calculator said it, I believe it, that settles it
