Q.If the data arranged in ascending order, 8, 9, 12, 17, x+2, x+4, 30, 31, 34, 39 has a median of 24, then the value of x - (a) 22 (b) 21 (c) 20 (d) 24
Answer: B
\(n=10\)
∴ Median = \(\cfrac{1}{2}\) (5th term + 6th term)
\(=\cfrac{1}{2} (x+2+x+4)\) \(=\cfrac{2x+6}{2}=x+3\)

\(\therefore\) According to the condition, \(x+3=24\)
Or, \(x=21\)
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