Correct Option: A

There are three parallel banks which are in turn connected in series Equivalent resistance of 20 ohm and 30 ohm parallel resistors

=	20 × 30	= 12 ohms .
	10 + 15

Equivalent resistance of 6 ohm, 4 ohm and 12 ohm bank = 2 ohms.
Total resistance of the circuit = 12 + 2 + 6 = 20 ohms

∴ Current drawn from supply =	V	=	120	= 6 A
	I		20

Current through 20 ohms resistor = 6 ×	30	= 3.6 A
	20 + 30

Current through 30 ohms resistor = 6 – 3.6 = 2.4
A Equivalent resistance of 6 ohm, 4 ohm and 12 ohm bank = 2 ohm,
Voltage drop = 6 × 2 = 12 V.

∴ Current through 6 ohm resistor =	12	= 2 A
	6

Current through 4 ohm resistor =	12	= 3 A
	4

Current through 12 ohm resistor =	12	= 1A
	12