Question

which among of the following is proportion ?
1:2 or 3:4
4:5 or 16:20
3:4 or 19:15
12:9 or 5:3 ​

Answer 1

Answer:

4:5 or 16:20

Step-by-step explanation:

Ok Good luck

Answer 2

$\bold{\boxed{Answer\:4:5, 16:20}}$

4 : 5

= 4 ×4 : 5 ×4

= 16 : 20