The average of $A$ and $B$ is $50$.  The average of $B$ and $C$ is $43$.  The average of $A$ and $C$ is $45$.  Find the average of $A$, $B$ and $C$. 
Overseas Competition->Knowledge Point->Word Problem Modules->Average Problems ->Questions Involving Average->Questions Involving Average (ordinary type) Overseas Competition->Knowledge Point->Counting Modules->Statistics and Probability