The 17th hole at the famous St Andrews golf course is 420m in length. how long will it appear on a plan of course of scale 1:8000?

Answer 1

well, if it were a scale of 1:2, it'd be 1/2 as big, right?

So, you can see it will be

420/8000 m

Now I'd suggest you convert that to cm for easier visulatization.