Home
Class 12
MATHS
A student takes examination in four subj...

A student takes examination in four subjects A, B, C, D. His chances of passing in A are `4/5`, in B are `3/4`, in C are `5/6` and in D are `2/3`. To qualify he must pass in A and atleast in two other subjects. What is the probability that he qualifies ?

Text Solution

Verified by Experts

The correct Answer is:
`(23)/(45)`
Promotional Banner

Similar Questions

Explore conceptually related problems

A college student has to appear for two examinations A and B. The probabilities that the student passes in A and B are 2/3 and 3/4 respectively. If it is known that the student passes at least one among the two examinations, then the probability that the student will pass both the examination is (A) 1/6 (B) 1/2 (C) 1/3 (D) 6/11

In a maths paper there are 3 sections A,B& C. Section A is compulsory. Out of sections B & C a student has to attempt any one. Passing in the paper means passing in A & passing in B or C. The probability of the student passing in A, B & C are p,q & 1/2 respectively. If the probability that the student is successful is 1/2 then :

The probability that a student passes in Mathematics is and the probability that hepasses in English is (2)/(3) .and the probability that he hepasses in English is (4)/(9). The probability that he passes in any one of the courses is (4)/(5) .The probability that he passes in both is

A problem in statistics is given to four students A, B, C and D. Their chances of solving it are (1)/(3), (1)/(4), (1)/(5) and (1)/(6) respectively. What is the probability that the problem will be solved?

The probability that a student selected at random from class will pass in Mathematics is 4/5, and the probability that he/she passes in Mathematics and Computer Science is.What is the probability that he/she will pass in computer science if it is known that he/she has passed in Mathematics?

For a student to qualify,he must pass at least two out of three exams.The probability that he will pass the 1 st exam is p.If he fails in one of the exams,then the probability of his passing in the next exam,is p/2otherwise it remains the same.Find the probability that he will qualify.

The probability that a student passes at least in one of the three examinations A,B,C is 0.75, the probability that he passes in atleast two of the exams is 0.5 and the proabability he passes exactly two of the exams is 0.4 . If alpha,beta, gamma , are respectively the probabilities of the student passing in A,B,C then.

The probability that a student will pass in Mathematics is 3/5 and the probability that he will pass in English is 1/3. If the probability that he will pass in both Mathematics and English is 1/8, what is the probability that he will pass in at least one subject?