New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    A question is given to Saket, Ankush and Prem.

    Probability that Saket, Ankush and Prem can solve the question is 1/3, 2/5 and 1/2. Find the probability that the question will be solved.
    A 3/5 Correct Answer Incorrect Answer
    B 1/5 Correct Answer Incorrect Answer
    C 2/5 Correct Answer Incorrect Answer
    D 4/5 Correct Answer Incorrect Answer
    E 1/3 Correct Answer Incorrect Answer

    Solution

    Probability that no one can solve the given question, => (1 - 1/3) × (1 -  2/5) × (1- 1/2) => 2/3 × 3/5 × 1/2 => 1/5 Probability that the question will be solved = 1 – Probability that no one can solve the question = 1 – 1/5 = 4/5

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