How long does it take to boil 4 eggs?

It depends upon the size of the pan you are using, and also whether you want them soft or hard boiled. A large saucepan should be able to accomodate 6 eggs- assuming you want them hard-boiled, this will take about 8 minutes from first putting them in the boiling water. There are eight lots of 6 in four dozen, so to find the time it takes to boil four dozen, multiply 8 minutes by eight, which makes 64 minutes - or 1 hr and 4 minutes.