Calculate the correct value below:
Three resistors are connected in series. Two of them have resistances of \(11\ \Omega\) and \(12\ \Omega\). When connected to a \(30\ V\) battery, the current in the circuit is \(0.4\ A\). Find the value of the third resistor.
The value of the third resistor is \(\Omega\)
[Note: Enter the answer upto two decimal places.]