The probabilities that a student passes in Mathematics, Physics and Chemistry are,m p andcrespectively. Of these subjects, the student has a 75% chance of passing in at least one, a 50% chanceof passing in at least two, and a 40% chance of passing in exactly two. Then

In a high school geometry class, only half of the class earned a passing grade.  Out of all the students, 45% studied and passed.  What is the probability of the someone having studied, given that they passed?

The chance of a student passing an exam is 20%. The chance of a student passing the exam and getting above 90% marks in it is 5%. GIVEN that a student pass the examination, the probability that the student gets above 90% marks is:

The probability that a student will pass Math is 40% and the probability that a student will pass English is 50%. There is a 20% chance that a student will pass both Math and English. What is the probability that a student will pass either Math or English (round your answer to one decimal place)?

In a class test, 30 students passed in Mathematics, 30 in Physics, and 35 in Chemistry. 20 students passed in exactly two subjects while 65 passed in at least one of the three subjects. How many passed in all the three subjects?105150

In a class of 150 students, 50 students passed in mathematics, 40 students failed only in chemistry and 20 students failed in both the subjects . How many students passed exactly in one subject?