Equivalent Resistance
Looks like a trick question. Circuit is shorted, so all the current will flow through the wire. Current through \$L_1\$ is 0. Ran the SPICE sim just to be sure. Results and netlist below :)



I1 0 0 10m
R1 0 0 15
R2 0 N001 47
L1 N001 0 10m
.tran 0 10m 0 1u
.backanno
.end