What is the total current through the circuit? 6 ohms 9V 9 ohms 12 ohms​

Here is no any circuit

but ( hint)

Kirchoff's current law is used here

Kirchhoff's current law (1st Law) states that the current flowing into a node (or a junction) must be equal to the current flowing out of it. This is a consequence of charge conservation.

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete

gas and liquid