Anne, Edward, and Isaac are the three editors of the Perplexus Weekly newspaper. This week, Anne spotted 300 errors, Edward spotted 100 errors, and Isaac spotted 200 errors. Altogether, they spotted 404 errors. Assuming that each error is equally easy to spot, about how many errors did they miss?
Was the number "404" deliberately chosen or just a coincidence. "Error 404" is a very common sight (or common site for that matter) on my computer.
Wondering
