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 ______.

पर्याय

• 19

• 17

• 15

• 13

Answer 1

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.