Question

What is the total current of the circuit shown in the figure above?

A. 10 A
B. 1 A
C. 3 A
D. 0.1 A

Answer 1

Without seeing the circuit, its impossible to calculate it. Your formula for current would be:
current = voltage \ resistance

That being said, take your voltage from the source and divide it by your entire resistance across the circuit and you'll find your answer! 

If you post the picture, I'll see what I can do to help you answer it properly!

Answer 2

The correct answer is 300/30 = 10A