In.an examination. 50%of the condidates have passed in mathematics 50% have passed in physics, while 41% have passed in both the subjects. Find the total number of candidates if..41 of them have failed in both subjects. (By., using set theory).

In an examination, 45% of the candidates have passed in English, 40% have passed in Bengali, while 30% have passed in both the subjects. Find the total number of candidates if 90 of them have failed in both the subjects.

In an examination 60% passed in mathematics,68% passes in statistics and 52% passed in both the subjects.If 42 candidates failed in both the subjects,then find the total no.of candidates,appeard in the examinations(Using the concept of set).

36 candidates appeared for an examination, 15 candidates passed I mathaematics, 15 candidates passed in physics, 20 candidates passed in chemistry, 3 candidates passed only in matematics, 4 candidates passed only in physics, 7 candidates passed only in chemistry and 2 candidates in all the three subjects. Then the number of cendidates who passed only in two subjects is-

In an examination 56% of the candidates failed in English and 48% Failed in Science. If 18% failed in both English and Science ,find the percentage of those wgo passed in both the subjects.

The probability that a candidate passes in physics is 70% and that the passes in chemistry is 40% . What is the probability that the candidate passes in any one of the two subjects ?

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 the three subjects. Only one student passed in all the subjects. Then the number of students failing in all the three subjects_____

There are 100 students in a class . In a examination, 50 of them failed in Mathematics , 45 failed in Physics, 40 falled in Biology and 32 failed in exactly two of the three subjects .Only one student passed in all the subjects .Then the number of students failing in all the three subjects

20 teachers of a school either teach mathematics or physics. 12 of them teach mathematics while 4 teach both the subjects. Then the number of teachers teaching only physics is

In on examination the probability of a student passed in physics is 2/3 , passed in both English,and physics is 14/45, If the probability of passing at least one subject is4/5 , find the probability of passing in English?