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Q.

If the median of the data 15, 16, 17, 2x +  4, 3x −  2, 20, 21, 22, written in ascending order is 18.5, then x=

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a

8

b

7

c

6

d

5

answer is D.

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Detailed Solution

Median =18.5

2x+4+3x−22=18.5

5x=35

x=7

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