Answer:
He can answer 2 questions in 6 minutes.
Step-by-step explanation:
This question can be solved by proportions, using a rule of three.
Each minute, Zack solves 1/3 of a question. How many questions can he solve in 6 minutes?
1 minute - 1/3 questions
6 minutes - x questions
[tex]x = \frac{1}{3} \times 6 = 2[/tex]
He can answer 2 questions in 6 minutes.
