The average of six numbers is X and the average of three of these is Y.If the average of the remaining three is z, then
Choose the correct choice from the following choices
A) x = y + z
B) 2x = y + z
C) x = 2y + z
D) x = y + 2z
E) None of these
Explanation:   X =((3y+3z)/6)   or   2X= y + z   Option 2x = y + z
<result>B</result>
The average of six numbers is X and the average of three of these is Y.If the average of the remaining three is z, then