Question

The given data 25, 28, 29, 35, 37, x +1, x + 3, 45, 46, 50, 51, 57 is in ascending order. If median of the data is 42, find 'x'
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Answer 1

median =(n+1)/2

=12+1)/2

=6.5th

(x+1) (x+3)/2=42

2x+4/2=42

2x+4=42*2

2x=84-4

x=80/2

x=40