The reading of high impedance voltmeter V in the bridge

The reading of high impedance voltmeter V in the bridge circuit shown in the given figure—

The given circuit:

Voltage at terminal A

V_A = 10 ×	10	=	10	V
	10 + 20		3

Voltage at terminal B

V_B = 10 ×	20	=	20	V
	20 + 10		3

Now,
V_BA = reading of voltmeter

=	20	=	10	=	10	= 3.33V
	3		3		3