Grade 12th pass9 grade maths
In a class of 55 students, the number of students studying different subjects is 23 in Mathematics and 24 in Physics, 19 in Chemistry, 12 in Mathematics and Physics, 9 in Mathematics and Chemistry, 7 in Physics and Chemistry and 4 in all the three subjects. The number of students who have taken exactly one subject is
A. 20
B. 24
C. 23
D. 22
In a class of 55 students, the number of students studying different subjects is 23 in Mathematics and 24 in Physics, 19 in Chemistry, 12 in Mathematics and Physics, 9 in Mathematics and Chemistry, 7 in Physics and Chemistry and 4 in all the three subjects. The number of students who have taken exactly one subject is
A. 20
B. 24
C. 23
D. 22
