Question

The mean of three positive numbers is 10 more than the smallest of the numbers and 15 less than the largest of the three. If the median of the three numbers is 5 then the mean of squares of the numbers is

Answer 1

Step-by-step explanation:

given: x+y+z/3=m

y=5;

m=x+10;x=m-10;

z=m+15

sub in above give eq u will get m= 10;

sub in x, y, z =0,5,25=total=30