Answer:
22.5 minutes
Step-by-step explanation:
Assume you answer each question within the same duration,
divide the total duration by the number of questions.
[tex]\frac{45}{20} = 2.25[/tex]
It takes you 2.25 minutes per question.
Multiply this answer by 10, you get the the time for 10 questions.
2.25*10 = 22.5 minutes
