Do it in your head.

If you travel at 60 km per hour,

you travel 60 km in 1 hour, so

1 hour is 60 minutes, therefore

you travel 60 km in 60 minutes.

So you travel 10km in 10 minutes!

That's the answer there in red!  Doesn't take a lot of knowledge or
calculating.  Just requires knowing that there are 60 minutes in
an hour.

Edwin