When 6 ohm and 12 ohm are connected in a series then what will be the equivalent resistance

When 6 ohm and 12 ohm are connected in a series then what will be the

1.	When 6 ohm and 12 ohm are connected in a series then what will be the equivalent resistance
Answer» R equivalent=R1+R2=> (6+12)ohm 18 ohm