Question

radio of 15 minutes to 30 minutes is ___________​

Answer 1

Answer:1:2

Step-by-step explanation:

15:30

/15  /15

1:2

Answer 2

$15 \: \: minutes : 20 \: \: minutes \\ = \frac{15 \: \: minutes}{20 \: \: minutes} \\ = \frac{15}{20} \\ = \frac{3}{4} \\ = 3:4$

The answer is 3:4.