Which number does not belong: 3, 5, 7, 9, 11?
Correct answer: C. 9
All the others are prime numbers. The number 9 can be divided by 3 (9 = 3 × 3), so it is not prime. All five are odd, so oddness is not the rule here.
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Answer and explanation
The correct answer is C. 9
All the others are prime numbers. The number 9 can be divided by 3 (9 = 3 × 3), so it is not prime. All five are odd, so oddness is not the rule here.
Topic: Number and Letter Series and Analogies MCQs · Subject: Analytical Ability