Mr. Hill had 8 bottles of apple juice and 48 bottles of orange juice in the end. This bar model shows that if we start with 3:2 and want 1:6 we can rewrite 3:2 as 9:6 so the 6’s match. This means the 8 boxes on the left that total 64 each represent 8 bottles so that the original 3:2 was really 72:48. After he sells 64 of the 72, he has 8 left and still has 48 orange juice bottles which simplifies to 1:6.