Question

if the mean of 2,,x and y is 8 then find the mean of x,y and8​

Answer 1

Answer:

2+x+y/3=8

x+y=24/2

x+y=12..........(1)

so, mean of x+y+8=x+y+8/3

Put value of x+y from eq. 1

so, mean=12+8/3

=20/3

=6.66

Answer 2

Answer:

the mean = x+y+2/3=8

x+y+2=24

x+y=22.........1

the mean of x+y+8=x+y+8/3

take the value of x+y from the 1 St equation

mean=(22+8)/3

=30/3

=10