एक सर्वे में (n(U)=40) और (n\(A^c\)=15) है। (n(A)) कितना होगा?

In a survey, (n(U)=40) and (n\(A^c\)=15). What is (n(A))?

Explanation opens after your attempt
Correct Answer

A. (25)

Step 1

Concept

(n(A)=n(U)-n\(A^c\)). Therefore (40-15=25).

Step 2

Why this answer is correct

The correct answer is A. (25). (n(A)=n(U)-n\(A^c\)). Therefore (40-15=25).

Step 3

Exam Tip

(n(A)=n(U)-n\(A^c\)) होता है। इसलिए (40-15=25) मिलेगा।

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एक सर्वे में (n(U)=40) और (n\(A^c\)=15) है। (n(A)) कितना होगा? / In a survey, (n(U)=40) and (n\(A^c\)=15). What is (n(A))?

Correct Answer: A. (25). Explanation: (n(A)=n(U)-n\(A^c\)) होता है। इसलिए (40-15=25) मिलेगा। / (n(A)=n(U)-n\(A^c\)). Therefore (40-15=25).

Which concept should I revise for this Mathematics MCQ?

(n(A)=n(U)-n\(A^c\)). Therefore (40-15=25).

What exam hint can help solve this Mathematics question?

(n(A)=n(U)-n\(A^c\)) होता है। इसलिए (40-15=25) मिलेगा।