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

    Question

    Find the average of five numbers a, b, c, d and e such

    that b = 20, and a is 20% more than that of ‘b’. ‘c’ is 10 less than ‘a’. The ratio of ‘c’ to ‘d’ is 1:3, respectively, and ‘e’ is 5 less than ‘b’.
    A 23 Correct Answer Incorrect Answer
    B 22 Correct Answer Incorrect Answer
    C 25 Correct Answer Incorrect Answer
    D 26 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    According to the question,
    a = 1.20 × 20 = 24
    c = 24 – 10 = 14
    d = 14 × 3 = 42
    e = 20 – 5 = 15
    Required average = (24 + 14 + 42 + 15 + 20)/5 = 115/5 = 23

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