Question

In a survey of 25 students, it was found that 15 had taken Mathematics, 12 had taken Physics and 11 had taken Chemistry, 5 had taken Mathematics and Chemistry, 9 had taken Mathematics and Physics, 4 had taken Physics and Chemistry and 3 had taken all the three subjects.
The number of students who had taken only physics is :
A. 7
B. 8
C. 9
D. 10

Answer 1

Correct Answer - C

Only two subjects = 6+2+1=9