George has a box of chocolates. there are 12 pieces of chocolate with nuts and 20 pieces of chocolate without nuts in the box. what is the ratio of pieces of chocolate without nuts to pieces of chocolate with nuts?
a.
15: 1
b.
1: 15
c.
3: 5
d.
5: 3

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.