Respuesta :

elvinweng

Answer:

10

Step-by-step explanation:

1/3 of an hour is 20, and 1/3 of 30 questions is 10, so 10 questions completed per 20 minutes.

SubjectzNoob

Answer:

10 minutes

Step-by-step explanation:

30/1 × 1/3

30/3

10/1

10