Two resistances, R1 and R2, are connected in series across a 12-V battery. The current increases by

Question:

Two resistances, R1 and R2, are connected in series across a 12-V battery. The current increases by 0.20 A when R2 is removed, leaving R1 connected across the battery. However, the current increases by just 0.10 A when R1 is removed, leaving R2 connected across the battery. Find
(a) R1 and
(b) R2.