Question

If arithmetic mean of 5,4x,x+3,9 and 8 is 6 find the value of x

Answer 1

Answer:

x=1

Step-by-step explanation:

Arithmetic mean = sum of all observations

no. of observations

Observations = 5,4x,x+3,9,8

No. of observations = 5

mean = 6

= 5+4x+x+3+9+8/5 = 6

5x+25/5 = 6

x+5=6

x = 6-5=1

Answer 2

Answer:

The value of x is 1

Step-by-step explanation:

The question is given an Individual series

so, Arithmetic mean=

$\frac{summation \: of \: x}{ n}$

where x= total value of the given of observation

n= no of observation

so, summation of x= 5+4x+x+3+9+8

= 5(x+5)

and n= 5

so, Am= 5(x+5)/5= (x+5)

Here in question the Am= 6(given)

so, x+5= 6

or, x= 1

Therefore the value of x is 1 (Ans)