Question

the mean of three numbers is 8 the mean of those three numbers and x is 7 find x​

Answer 1

Answer:

x=4

Step-by-step explanation:

sum of three numbers is =8*3=24

so according to your condition 24+x=7*4

or, x= 4.

Answer 2

Answer:

x=4

Step-by-step explanation:

mean of 3 nos. is given as 8.

let it be,a+b+c/3=8

then,a+b+c=24----------1

given,mean of the nos and x is 7

a+b+c+x/4=7

from 1,

24+x/4=7

24+x=28

x=28-24

=4