Question

Which ratio forms a proportion with

6/12


A: 20/36

B: 30/50

C: 36/72

D: 70/144

Answer 1

C

Explanation:

If we look at all the options, we can see that the only easy multiple of 6 is 30 and 36, so we look at those first.

6*5=30

12*5 does not equal 50

So then we look at the other one

6*6=36

12*6=72