If resistor R1 = R2 = R3 = 5 Ω and R4 = 10 Ω which circuit diagram is having equivalent

Question

If resistor \(R_1 = R_2 = R_3 = 5\ \Omega\) and \(R_4 = 10\ \Omega\) which circuit diagram is having equivalent (Across A and B) resistance = \(6\ \Omega\)

Answer 1

Correct option is : (1)

\(R_1+ R_2 + R_3 = 15\ \Omega\)

Request = \(\frac{15.10}{25} = 6\Omega\)