I am running a hotdog eating contest parameters are; 10 hotdogs to the pack 8 buns to the pack random # of contestants and hotdogs to be eaten. if say 2 contestants eat 3 hotdogs each how many hotdogs...

I am running a hotdog eating contest parameters are; 10 hotdogs to the pack 8 buns to the pack random # of contestants and hotdogs to be eaten.  if say 2 contestants eat 3 hotdogs each how many hotdogs and buns will be left over,  how many dogs and bun open packs will there be.  This must be written up in java code but my algebra is not working.