Select which representations show the same relation

Answer 1

1. A: 2:4
B: 3:6

2. A: 5:10
B: 8:16

3. A: 6:12
B: 9:18

4. A: 4:8
B: 7:14

Examples 1 and 2 represent the same relation since both have a ratio of 1:2.