Question

the mean of x, 1,2,3 and x is x then x=
(a) 1
(b) 2
(c) 3
d 4​

Answer 1

Answer:

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Step-by-step explanation:

Question

If the mean of x and 1/x is M, then the mean of x3 and 1/x3 is

Answer · 0 votes

Given mean x and 1/x is M M = x + 1/x/2 x + 1/x = 2M Cube both the sides ( x + 1/

Answer 2

Step-by-step explanation:

$mean = \frac{x + 1 + 2 + 3}{4}$

$x = \frac{x + 6}{4}$

$4x = x + 6$

$4x - x = 6$

$3x = 6$

$∴x = 2$

$∴x = \frac{6}{3}$

Answer=b)2