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Question
26, x + 4, x + 2 and 18 are in descending order of their values and their median is 20, then the value of x is ______.
Options
19
17
15
13
MCQ
Fill in the Blanks
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Solution
26, x + 4, x + 2 and 18 are in descending order of their values and their median is 20, then the value of x is 17.
Explanation:
Since there are 4 observations in descending order, the median is the average of the 2nd and 3rd terms: `((x + 4) + (x + 2))/2 = x + 3`. Equating this to the given median of 20 gives x + 3 = 20, which results in x = 17.
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