\(यदि (U={x:x\in\mathbb{N},1\le x\le 30}) और (A={x:x\) 2 या 3 से विभाज्य है\(}) है, तो (n(A^c)) कितना होगा\)?

\(If (U={x:x\in\mathbb{N},1\le x\le 30}) and (A={x:x\) is divisible by 2 or \(3}), what is (n(A^c))\)?

Explanation opens after your attempt
Correct Answer

A. (10)

Step 1

Concept

Numbers divisible by (2) or (3) are (15+10-5=20). So the complement has (30-20=10) numbers.

Step 2

Why this answer is correct

The correct answer is A. (10). Numbers divisible by (2) or (3) are (15+10-5=20). So the complement has (30-20=10) numbers.

Step 3

Exam Tip

(2) या (3) से विभाज्य संख्याएं (15+10-5=20) हैं। इसलिए पूरक में (30-20=10) संख्याएं होंगी।

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Mathematics Answer, Explanation and Revision Hints

\(यदि (U={x:x\in\mathbb{N},1\le x\le 30}) और (A={x:x\) 2 या 3 से विभाज्य है}) है, तो (n\(A^c\)) कितना होगा? \(/ If (U={x:x\in\mathbb{N},1\le x\le 30}) and (A={x:x\) is divisible by 2 or \(3}), what is (n(A^c))\)?

Correct Answer: A. (10). Explanation: (2) या (3) से विभाज्य संख्याएं (15+10-5=20) हैं। इसलिए पूरक में (30-20=10) संख्याएं होंगी। / Numbers divisible by (2) or (3) are (15+10-5=20). So the complement has (30-20=10) numbers.

Which concept should I revise for this Mathematics MCQ?

Numbers divisible by (2) or (3) are (15+10-5=20). So the complement has (30-20=10) numbers.

What exam hint can help solve this Mathematics question?

(2) या (3) से विभाज्य संख्याएं (15+10-5=20) हैं। इसलिए पूरक में (30-20=10) संख्याएं होंगी।