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

    Question

    If the mean proportion of 4.8 and 1.2 is denoted by 'k',

    then determine the value of '5k'.
    A 12 Correct Answer Incorrect Answer
    B 16 Correct Answer Incorrect Answer
    C 18 Correct Answer Incorrect Answer
    D 10 Correct Answer Incorrect Answer

    Solution

    Mean proportion of two numbers 'a' and 'b' = √ab So, 'k' = √(4.8 X 1.2) = √5.76 = 2.4 Required value = 5 X 2.4 = 12

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