How to Calculate Voltage and Current in a Circuit with a Diagram?

[Busybee12]

Homework Statement

For the circuit shown below, determine
i) The voltage (V) at points Y and Z.
ii) The current through each resistor.

Homework Equations

V=IR, I=V/R, R=V/I

The Attempt at a Solution

For (i) do I have to split into series and parallel?

 

[NascentOxygen]

For (i) do I have to split into series and parallel?

The circuit is already split into series and parallel. To make some calculations in (i) easier, you'll want to [temporarily] combine some of the parallel paths into a single resistance.