TS ICET 30 Sep 2020 Shift 1 Paper

In a group of athletes in a school, 21 are on basket ball team, 26 are on hockey team and 29 are on foot ball team. If 14 play hockey and basket ball, 12 play foot ball and basket ball, 15 play hockey and foot ball and 8 play all the three, how many play only foot ball?