vivek_rj3

 Profile Answers by vivek_rj3 

• Nov 2nd, 2005

 

here x=y=2z and we have to find the value of x

so y=x and z=x/2 from the above equations

and xyz=256 is given.Put the value of y and z

x3/2=256 so x3=512

hence x=8(x3=8*8*8=256)

divya

• Aug 20th, 2006

 

x=y=2z,  x*y*z=256

            2z*2z*z=256

           4*z^3=256

          z^3=64      --> z=4 and x=2*4=8

          

ajaynair25

 Profile Answers by ajaynair25 

• Sep 23rd, 2008

 

x=y=2z
 xyz=256
2z*2z*z=256
4z^3=256
z^3=256/4=64
Z^3=64
Z=4
x=2z=2*4=8

Sainath

• Feb 16th, 2017

 

x=y=2z ==> x=2z & y=2z
x.y.z=> 2z. 2z. z=256
4z3=256, z3= 64 which means z=4

Titiksha Revoo

• May 30th, 2018

 

as we know that x=y=2z and xyz=256
then x=?
here we can write x=2z and y= 2z then
putting these value in xyz=256
2z* 2z*z=256
4z^3=256
z^3=256/4=64=4^3
z=4
as we know x= 2z so x= 2*4=8