Question

Need help with my maths please ,having lol problem.

Answer 1

For every van there are 6 students 6x,(6 students,x is the number of vans)

Answer 2

Below are a few ways to demonstrate some of the patterns in the graph. 

Vans to students:
$\frac{1}{6}$
1:6
1 to 6

I hope this helps!