Answer:
Suzanne's lessons are 20 minutes long.
Jim's lessons are 50 minutes long.
Step-by-step explanation:
Jim's lessons = 30min longer than Suzanne's lessons
Suzanne's lessons = 1/3 of Pedro's lessons
Pedro's lessons = 60min
First, you need to find Suzanne's lesson time because her lessons are linked to Pedro's. Since you know Pedro's lesson is 60 minutes long and Suzanne's are a third of that you do: 60/3. Which is 20. So you know Suzanne's lessons are 20minutes long.
Next, since you know Suzanne's lessons are 20minutes long and Jims are 30mins longer than Suzanne's you do: 20+30. Which equals 50minutes. So, Jim's lessons are 50minutes long.
