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

    Question

    Archers 'A' and 'B' take aim at a target. if the

    probability of 'A' hitting the target is 90% and of 'B' missing the target is 90% what is the probablity that both 'A' and 'B' miss the target?
    A 90% Correct Answer Incorrect Answer
    B 09% Correct Answer Incorrect Answer
    C 01% Correct Answer Incorrect Answer
    D 81% Correct Answer Incorrect Answer

    Solution

    ATQ, Probability of Archer 'A' hitting the target is 90% = 9/10 ⇒ Probability of Archer 'A' missing the target is 10% = 1/10 Probability of Archer 'B' missing the target is 90% = 9/10 ⇒ Probability of Archer 'B' hitting the target is 10% = 1/10 ∴ Probability that A and B will miss the target = 1/10 × 9/10 = 9%

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