#### Tricky Math Riddle

For a $100,000 prize, a question is written in a magazine. A man opens the magazine and reads a question written: "A man finishes 13 math problems in one day, and another finishes 27 math problems in one day. How many math problems have the 3 of you solved so far?" The man is confused when the magazine says "3 of you" because he has not solved any math problems today. He gives the answer of 40 problems, but to his surprise, he gets the question wrong. What is the correct answer to the question and why?