Question

19. There are 100 students in a class. In an
examination, 50 of them failed in Mathematics, 45
failed in Physics, 40 failed in Biology and 32
failed in exactly two of three subjects. Only one
student passed in all the subjects. Then the
number of students failing in all three subjects
(a) Is 12
(b) Is 4
M-1.
1.
(c) Is 2
2.
(d) Cannot be determined from the given
information​

Answer 1

Answer:

ur question is not clear pls say clearly