Respuesta :

C. 24
This is because 20 divided by 5 is 4. Next, you multiply 6 and 4 to get 24. 24 is the answer.
5 / 6 =  0.833 
20 / 30 = 0.666
20 / 24 =  0.833
20 / 22 =  0.909
20 / 21 = 0.952
 
The answer therefore would be 5 / 6 and 20 / 24 or c in this case.