The median of the following observations arranged in ascending order
11, 12, 15, 21, x+2, X+4, 33,34,37,42 is 25. Find x.
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Median=25
(n/2)+(n+1/2)th term/2=25
(10/2)+(10+1/2)th term/2=25
5th+6th term/2=25
x+2+x+4/2=25
2x+6=25×2
2x+6=50
2x=50-6
x=44/2
x=22
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