Question

    The average score of 70

    candidates in the SBI PO exam is 40. If the candidates who passed have an average score of 49, while those who failed have an average score of 35, determine the ratio of the number of candidates who passed to the number of those who failed in the SBI PO exam.
    A 9:8 Correct Answer Incorrect Answer
    B 5:9 Correct Answer Incorrect Answer
    C 5:8 Correct Answer Incorrect Answer
    D 2:7 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Total scores = 70×40 = 2800 Let the number of passed and failed aspirants in the SBI PO exam be 'p' and (70-p) respectively. 2800 = p×49+ (70-p)×35 2800 = 49p+70×35-35p 2800-2450 = 14p p = 350/14 = 25 The number of failed aspirants = 70-25 = 45 Required ratio = 25:45 = 5:9

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