please answer it

3. (a) A group of 120 students were surveyed to see what computer games they play, and the following results were obtained: 46 students play DOTAZ 52 students play CS:G0 50 students play TF2 25 students play both DOTA2 and CS:G0 21 students play both DOTA2 and TF2 23 students play both CS:G0 and TF2 16 students play DOTAZ, CS:GO, and TF2 How many students play: '1 At least one of the games? ii Only one of the games? iii None of the games? iv Only D0TA21 but not CS:G0 or TF2? v DOTAZ and CS:GO, but not TF2? Show your work using set operations, e.g., with union and intersection operations