R1 · R2 / R1 + R2= 1000 · 130 = 33000 /1330 = 250 ohms.

Rt= R 1 2·R3/R1 2+R3=250·120/250+120=80 ohms.

It= Vt/Rt      9v/50ohms= 0,11A---- 111mA

Ir1= Vr2/R1----- 9v/1K= 9mA