Question

If the mean of x+2, 2x+3, 3x+4 and 4x+5 is x+2 then find the value of x

Answer 1

Mean = (sum of observations)/(number of observations)

Here,

x + 2 = (x+2+2x+3+3x+4+4x+5)/4

4(x+2) = (10x + 14)

4x + 8 = 10x + 14

8 - 14 = 10x - 4x

-6 = 6x

-6/6 = x

-1 = x


I hope this will help you


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Answer 2

Hiii friend,

Obsetvations are X+2,2X+3,3X+4 and 4X+5

Mean = Sum of observations/Number of obser

X + 2 = X+2 + 2X + 3 + 3X + 4 + 4X + 5/4

4(X+2) = 10X + 14

4X + 8 = 10X + 14

10X - 4X = 8 -14

6X = -6

X = -6/6 => -1



Hence,


Value of X is -1



HOPE IT WILL HELP YOU...... :-)