If x=2y=3z and xyz=36, what is the value of z?

A    2

B    √2

C    √3

D    3

Solution

Correct Answer: Option A

 

x = 3z

2y=3z

y= (3/2)z

Now, xyz = 36

3z.3/2.z.z = 36

9z3/2 =36

z3 = 8

z=2

 

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