Why is current value 0.2?
The current will be split between the right and left sides of the circuit proportional to the resistance. It may help to visualize this as water flowing through tubes with flow restrictors where the resistors are. It's easy to see in this way that SOME water will flow through both sides of the circuit.

Also note: you can use parallel and series resistor equations to so simplify both sides of the circuit into single resistors to ground.