Question

The probability of Ram getting passed in a subject is 3/4. He gave 5 subject exams and the probability of getting passed in each subject is the same, then what is the probability of Ram to get passed in all the subjects?

A. \(1\over256\)

B. \(255\over256\)

C. \(1\over4\)

D. \(3\over4\)

1. Only A
2. None
3. Only B
4. Only C

Answer 1

Correct Answer - Option 3 : Only B

Given:

Probability of Ram to get passed in one subject: \(3\over4\)

Probability of Ram not getting passed in one subject: \(1\over4\)

Formula used:

P = (Number of favorable outcomes)/(Total number if outcomes)

Calculation:

Probability of not getting passed in all subjects: (\(1\over4\))\(^5\) = \(1\over256\)

Probability of getting passed in all the subjects: 1 - \(1\over256\) = \(255\over256\)

Hence, Only B is the correct answer.