Multiple choice general knowledge

A circle has a diameter of 6 less than x and is smaller than a circle with a diameter of 3. Which of these can x equal?

  1. x^2

  2. 10

  3. x+1

  4. 2x-8
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The diameter is (x-6) and must be less than 3, so x < 9. Setting x = 2x-8 gives x = 8, making the diameter 2, which satisfies the condition. Option A (x = x² gives x = 0 or 1) leads to negative diameters, option B (x = 10) gives diameter 4 > 3, and option C (x = x+1) is impossible.

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