Question

The mean of 18, 20, 52,
If the mean of x, X + 2, 4, x+ 6 and 8 is 13, find the value of x​

Answer 1

Answer:

Given observations x,x+2,x+4,x+6,x+8

∵5x+(x+2)+(x+4)+(x+6)+(x+8)=11

⇒55x+20=11

⇒x=7

So, the observations are 7,9,11,13,15

Req. mean =311+13+15=13

Answer 2

ANSWER

15

hope this helps u.....