\(यदि (A={x\in \mathbb{N}:x\leq 20\) and x is divisible by \(5}) और (B={5,10,15,20}) है, तो सही कथन क्या है\)?

\(If (A={x\in \mathbb{N}:x\leq 20\) and x is divisible by \(5}) and (B={5,10,15,20}), what is the correct statement\)?

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Correct Answer

A. (A=B) और (n(A)=4)(A=B) and (n(A)=4)

Step 1

Concept

Natural numbers up to (20) divisible by (5) are (5,10,15,20).

Step 2

Why this answer is correct

These are exactly the elements of (B), and there are (4) of them.

Step 3

Exam Tip

The boundary (20) is included because \(\leq\) is given. चरण 1: (20) तक (5) से विभाज्य प्राकृतिक संख्याएँ (5,10,15,20) हैं। चरण 2: ये ठीक (B) के अवयव हैं और कुल (4) हैं। चरण 3: सीमा शामिल है क्योंकि \(\leq\) दिया गया है।

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Mathematics Answer, Explanation and Revision Hints

\(यदि (A={x\in \mathbb{N}:x\leq 20\) and x is divisible by 5}) और \(B=\{5,10,15,20\}\) है, तो सही कथन क्या है? \(/ If (A={x\in \mathbb{N}:x\leq 20\) and x is divisible by \(5}) and (B={5,10,15,20}), what is the correct statement\)?

Correct Answer: A. (A=B) और (n(A)=4) / (A=B) and (n(A)=4). Explanation: चरण 1: (20) तक (5) से विभाज्य प्राकृतिक संख्याएँ (5,10,15,20) हैं। चरण 2: ये ठीक (B) के अवयव हैं और कुल (4) हैं। चरण 3: सीमा शामिल है क्योंकि \(\leq\) दिया गया है। / Step 1: Natural numbers up to (20) divisible by (5) are (5,10,15,20). Step 2: These are exactly the elements of (B), and there are (4) of them. Step 3: The boundary (20) is included because \(\leq\) is given.

Which concept should I revise for this Mathematics MCQ?

Natural numbers up to (20) divisible by (5) are (5,10,15,20).

What exam hint can help solve this Mathematics question?

The boundary (20) is included because \(\leq\) is given. चरण 1: (20) तक (5) से विभाज्य प्राकृतिक संख्याएँ (5,10,15,20) हैं। चरण 2: ये ठीक (B) के अवयव हैं और कुल (4) हैं। चरण 3: सीमा शामिल है क्योंकि \(\leq\) दिया गया है।