Multiple choice general knowledge math & puzzles

Find out the odd one: 6, 9, 15, 21, 24, 28, 30

  1. 28

  2. 21

  3. 24

  4. 30
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A Correct answer
Explanation

In the sequence 6, 9, 15, 21, 24, 28, 30, all numbers except 28 are multiples of 3. 28 is the only number not divisible by 3, making it the odd one out.

AI explanation

To determine the odd one out from the given sequence, let's analyze the numbers:

6, 9, 15, 21, 24, 28, 30

We can observe that all the numbers in the sequence are either multiples of 3 or multiples of 6. However, the number 28 does not fit this pattern. It is not a multiple of 3 or 6.

Analyzing each option:

A. 28 - This option is incorrect because it is not a multiple of 3 or 6. B. 21 - This option is correct because it is a multiple of 3. C. 24 - This option is incorrect because it is a multiple of 6. D. 30 - This option is incorrect because it is a multiple of 6.

Therefore, the odd one out is option A, 28, as it does not follow the pattern of being a multiple of 3 or 6.

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