Multiple choice softskills communication

If X=Y=2Z and XYZ = 256, then what is the value of X ?

  1. 8

  2. 3

  3. 5

  4. 6
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Given X = Y = 2Z, so Y = 2Z and X = 2Z as well. Then XYZ = (2Z)(2Z)(Z) = 4Z³ = 256, so Z³ = 64 and Z = 4. Therefore X = 2Z = 8. Option B (3), C (5), and D (6) don't satisfy the equation when substituted back.

Keep practicing — related questions