Since the resistances are in parallel, the voltage in each one is the same, so:
a. V1 = 60 V
b. V2 = 60 V
c. V3 = 60 V
d.
The total resistance of parallel resistances can be calculated with the formula below:
e.
The total current is given by the voltage divided by the total resistance:
The current in each resistor is given by the voltage divided by the resistance:
f.
g.
h.