यदि (n(U)=80), (n(A)=50), (n(B)=45) और (n\(A\cap B\)=25) है, तो (n(\(A\cup B\)^c)) कितना होगा?

If (n(U)=80), (n(A)=50), (n(B)=45), and (n\(A\cap B\)=25), what is (n(\(A\cup B\)^c))?

Explanation opens after your attempt
Correct Answer

A. (10)

Step 1

Concept

(n\(A\cup B\)=50+45-25=70). Hence (n(\(A\cup B\)^c)=80-70=10).

Step 2

Why this answer is correct

The correct answer is A. (10). (n\(A\cup B\)=50+45-25=70). Hence (n(\(A\cup B\)^c)=80-70=10).

Step 3

Exam Tip

(n\(A\cup B\)=50+45-25=70) है। इसलिए (n(\(A\cup B\)^c)=80-70=10) होगा।

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यदि (n(U)=80), (n(A)=50), (n(B)=45) और (n\(A\cap B\)=25) है, तो (n(\(A\cup B\)^c)) कितना होगा? / If (n(U)=80), (n(A)=50), (n(B)=45), and (n\(A\cap B\)=25), what is (n(\(A\cup B\)^c))?

Correct Answer: A. (10). Explanation: (n\(A\cup B\)=50+45-25=70) है। इसलिए (n(\(A\cup B\)^c)=80-70=10) होगा। / (n\(A\cup B\)=50+45-25=70). Hence (n(\(A\cup B\)^c)=80-70=10).

Which concept should I revise for this Mathematics MCQ?

(n\(A\cup B\)=50+45-25=70). Hence (n(\(A\cup B\)^c)=80-70=10).

What exam hint can help solve this Mathematics question?

(n\(A\cup B\)=50+45-25=70) है। इसलिए (n(\(A\cup B\)^c)=80-70=10) होगा।