यदि (n(A-B)=7) और (n\(A\cap B\)=3), तो (n(A)) क्या है?

If (n(A-B)=7) and (n\(A\cap B\)=3), what is (n(A))?

Explanation opens after your attempt
Correct Answer

C. (10)

Step 1

Concept

Set (A) includes only (A) and the common part, so (n(A)=7+3=10). Add all parts of circle (A).

Step 2

Why this answer is correct

The correct answer is C. (10). Set (A) includes only (A) and the common part, so (n(A)=7+3=10). Add all parts of circle (A).

Step 3

Exam Tip

(A) में केवल (A) और साझा भाग दोनों आते हैं, इसलिए (n(A)=7+3=10)। वृत्त (A) के सभी हिस्से जोड़ें।

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Mathematics Answer, Explanation and Revision Hints

यदि (n(A-B)=7) और (n\(A\cap B\)=3), तो (n(A)) क्या है? / If (n(A-B)=7) and (n\(A\cap B\)=3), what is (n(A))?

Correct Answer: C. (10). Explanation: (A) में केवल (A) और साझा भाग दोनों आते हैं, इसलिए (n(A)=7+3=10)। वृत्त (A) के सभी हिस्से जोड़ें। / Set (A) includes only (A) and the common part, so (n(A)=7+3=10). Add all parts of circle (A).

Which concept should I revise for this Mathematics MCQ?

Set (A) includes only (A) and the common part, so (n(A)=7+3=10). Add all parts of circle (A).

What exam hint can help solve this Mathematics question?

(A) में केवल (A) और साझा भाग दोनों आते हैं, इसलिए (n(A)=7+3=10)। वृत्त (A) के सभी हिस्से जोड़ें।