Question

13,15,17,x,20,21; the median is 18. whats is x?

Answer 1

Here is your answer.....

Median = [(n/2) th term + {(n/2)+1} th term ] / 2  ; here n is an even number

So,

Median = [(6/2) th term + {(6/2)+1} th term ] / 2 
18 = 3rd term + 4th term
18 = 17 + x
x = 18 - 17
x = 1

So,the value x is 1.

I hope it helps you ^_^

Answer 2

the answer us 1.....…....…