Multiple choice general knowledge math & puzzles

In each of the following questions, 5 words are given, out of which four are alike in some manner, while the fifth one is different. Choose out the odd one:

  1. Amethyst

  2. Ruby

  3. Marble

  4. Sapphire

  5. Diamond
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Amethyst, Ruby, Sapphire, and Diamond are all precious gemstones used in jewelry. Marble is a metamorphic rock used for construction and sculpture, not classified as a precious gemstone. This makes it the odd one out.

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