Question

If x=y=2z and xyz=256 then what is the value of x?

(a)12 (b)8 (c)16 (d)6

Answer 1

Solution==>>

XYZ=256

(2Z)(2Z)Z=256

4Z³=256

Z³=64

Z³=4³

SO Z=4

AS X=2Z

X=8

Answer 2

when x=y=2z then x=8