Question 314511
Students answered question 1 and  answered question 2 BOTH correctly= 8

Students answered question 1 correctly=18,

Hence , Students answered  correctly question 1 ONLY =18-8=10

Students answered question 2 correctly=23

Hence , Students answered correctly question 2 ONLY =23-8=15


Hence Total number of studets=Students answered question 1 and  answered question 2 BOTH correctly+Students answered  correctly question 1 ONLY+Students answered correctly question 2 ONLY+students answered incorrectly on both questions

Total number of studets=8+10+15+11=44