Hi
I would appreciate some help in explaining the answer to the following question
Q. A pilot wishes to turn right on to a northerly heading with 20 degree bank at a latitude of 40 degree North
Using a Direct reading Compass in order to achieve this he must stop the turn onto an approximate heading of
1) 330
2) 350
3) 030
4) 010
The correct answer is 330
Could someone care to explain as to how this answer is calculated
Thanks in advance