Total Resistance: Calculate 8Ω Circuit, Don't Get It?

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paulwct
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If all the lightbulb in pic have resistance of 12 [tex]\Omega[/tex], What is the total circuit's total resistance? And the answer supposed to be 8 but I don't get it how it got 8?
Please let me know
 

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Your picture is practically illegible, but more importantly, you need to show your attempt to figure it out yourself. Preferably using the provided template.
 
The answer's absolutely correct.
show us what u have done and what answer you get!