यदि (n(U)=30) और (n\(A^c\)=18) है, तो (n(A)) कितना होगा?

If (n(U)=30) and (n\(A^c\)=18), what is (n(A))?

Explanation opens after your attempt
Correct Answer

A. (12)

Step 1

Concept

(n(A)=n(U)-n\(A^c\)). Therefore (30-18=12) is correct.

Step 2

Why this answer is correct

The correct answer is A. (12). (n(A)=n(U)-n\(A^c\)). Therefore (30-18=12) is correct.

Step 3

Exam Tip

(n(A)=n(U)-n\(A^c\)) होता है। इसलिए (30-18=12) सही है।

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Mathematics Answer, Explanation and Revision Hints

यदि (n(U)=30) और (n\(A^c\)=18) है, तो (n(A)) कितना होगा? / If (n(U)=30) and (n\(A^c\)=18), what is (n(A))?

Correct Answer: A. (12). Explanation: (n(A)=n(U)-n\(A^c\)) होता है। इसलिए (30-18=12) सही है। / (n(A)=n(U)-n\(A^c\)). Therefore (30-18=12) is correct.

Which concept should I revise for this Mathematics MCQ?

(n(A)=n(U)-n\(A^c\)). Therefore (30-18=12) is correct.

What exam hint can help solve this Mathematics question?

(n(A)=n(U)-n\(A^c\)) होता है। इसलिए (30-18=12) सही है।