If M is the mean of x,y,z ; then what is the mean of z,y and x	Choose the correct choice from the following answers:	A) 2M	B) 3M	C) 10M	D) M	E) M-10
order only changed   So new mean is M .   Answer (M)
<result>D</result>
If M is the mean of x,y,z ; then what is the mean of z,y and x