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).

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.

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_____

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-

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

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.

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?

In a class of 125 students 70 passed in Mathematics, 55 in statistics, and 30 in both. Then find the probability that a student selected at random from the class has passed in only one subject.

Among the examinees in an examination, 25%,30% and 45% failed in statistics, in mathematics and in at least one of statistics and mathematics respectively. An examinee is selected at random. Find the probabilities that (i) he failed in statistics only (ii) he passed in statistics if it is known that he failed in mathematics.