6, 9, 15, 21, 24, 28, 30 · ABC26GN5452

Subject: General Aptitude · Chapter: Odd Man Out and Series

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

(a)28

(b)21

(c)24

(d)30

Answer

Answer (as printed): A

Explanation

Each of the numbers except 28, is a multiple of 3.

Explanation as extracted from the printed page; notation may be imperfect.

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