Yes
no
3:2 four common ratios are... 6:4 9:6 12:8 15:10
5 to 6 10 to 12 15 to 18
10 to 100, 2 to 20, 156 to 1560 are three examples.
10:60 2:12 5:30
They are: 5 to 6, 15 to 18 and 20 to 24
3 to 10 6 to 20 12 to 40
10 to 6; 15 to 9; 20 to 12
5 to 6 15 to 18 20 to 24
24 to 10 480 to 200 240 100
They are: 5 to 6, 10 to 12 and 15 to 18
yes