Circuits question

[ApPhysics2011]

ok it is question #3 from the Ap Physics 1983 exam. http://www.dtfizzix.com/APEXAMS/Phackets/B-1983-Exam.pdf


im not sure how to answer any of the questions and if you could help me im sure ill be able to solve the other questions like this. thanks

[verty]

Is there something particular about this question that is confusing? If you know how to calculate the voltage drop over the two parallel resistors, the rest is easy.

[ApPhysics2011]

how do you calculate voltage drop

[verty]

I want to help, but I can't solve the question for you. Have you tried to solve this?