Did you notice the “explanation” that shows up in the quiz results, after you’ve taken the quiz? It gives you the basic steps.
First you need to know circuit current. Do you know how to figure that out?
Also, I’m not sure what you mean by this
i know they are 240 vac and its a series circuit r1 one and r2 120 vac right.
The circuit is supplied with 240vac, and it has two loads in series.