Novicef,
As a general rule, yes you are correct. If you can understand the theory behind it, it makes it simpler to understand.
If you are in a 1 minute holding pattern, holding ten degrees of drift on the inbound leg, after your turn outbound you will require 30 degrees of drift. Basically, the pattern can be dived into four separate parts - the inbound leg, the 1st tun outbound, the outbound leg, and the inbound turn. In a G/A type of aircraft, the inbound leg takes 1 min, oubound turn 1 min, outbound leg 1 min, and inbound turn 1min. Total time of 4 minutes for a 1minute holding pattern. If you are only able to make an adjustment for wind during the inbound and the outbound legs, compensation must be made for the wind effect during the turns. Thus, if you are established inbound and can estimate your drift as being say 10 degrees, you have worked out how much drift is required for 1/4 of the pattern. Now we realise that we must compensate for the outbound leg as well as the turns - equal in time. To find the allowance for the outbound, we now multiply the drift on the inbound leg by 3, as the adjustment is now for the remaining 3 minutes of the pattern. 30 degrees allownace outbound.
Jees this would be easier with a whiteboard!
2 minute pattern, 4 different parts. Inbound 2mins, turn 1min, outbound 2mins, turn 1 min. Total time 6 minutes. 10 degrees drift inbound, 1/3rd of total pattern. Therefore 2/3rd's remaining, multiply by 2 - 20 degrees outbound.