Dual major in 3 years

Is it possible to dual major in 3 years?
im thinking about computer science + economics/accounting(one of them)
and also is it possible to triple major in 3-4 years? (Computer science, some sort of engineering(computer/robotics) and accounting)
cause i can only spare 3-4 years before my parents bug me about master/phd …

one of my friends told me that he only has to go to school Monday and Friday and thats why i think i could do triple major…(ps also i already know alot about computer science and the department head said he will give me advanced courses if i want to something like 300s)