Answer:
Vicki takes 12 minutes.
Explanation:
Call the time that Dennis takes to read; D
The time that Vicki takes to read is; V
As per the question;
Dennis takes 3 times as long as Vicki takes to read a paper, hence the equation formed is;
D = 3V
It is given that Dennis takes 36 minutes to read, hence
36 = 3V
Solve with inverse operations;
36 = 3V
/3 /3
12 = V