For data -1, 1, 4, 3, 8, 12, 17, 19, 9, 11; if M is the median of first 5 observations and N is the median of last five observations, then what is the value of 4M-N?

NDA 2023 Mathematics question

For data ; if is the median of first 5 observations and is the median of last five observations, then what is the value of ?

Answer: (D)

First five observations: ; in order , so . Last five

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Question ID VK-029643