यदि (n(U)=60), (n(A)=32), (n(B)=27) और (n\(A\cap B\)=11), तो (n(\(A\cup B\)')) क्या है?

If (n(U)=60), (n(A)=32), (n(B)=27) and (n\(A\cap B\)=11), what is (n(\(A\cup B\)'))?

Explanation opens after your attempt
Correct Answer

A. (12)

Step 1

Concept

(n\(A\cup B\)=32+27-11=48), so the complement has (60-48=12) elements. Find the union first, then subtract from (U).

Step 2

Why this answer is correct

The correct answer is A. (12). (n\(A\cup B\)=32+27-11=48), so the complement has (60-48=12) elements. Find the union first, then subtract from (U).

Step 3

Exam Tip

(n\(A\cup B\)=32+27-11=48), इसलिए पूरक में (60-48=12) तत्व हैं। पहले संघ निकालें फिर (U) से घटाएं।

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Mathematics Answer, Explanation and Revision Hints

यदि (n(U)=60), (n(A)=32), (n(B)=27) और (n\(A\cap B\)=11), तो (n(\(A\cup B\)')) क्या है? / If (n(U)=60), (n(A)=32), (n(B)=27) and (n\(A\cap B\)=11), what is (n(\(A\cup B\)'))?

Correct Answer: A. (12). Explanation: (n\(A\cup B\)=32+27-11=48), इसलिए पूरक में (60-48=12) तत्व हैं। पहले संघ निकालें फिर (U) से घटाएं। / (n\(A\cup B\)=32+27-11=48), so the complement has (60-48=12) elements. Find the union first, then subtract from (U).

Which concept should I revise for this Mathematics MCQ?

(n\(A\cup B\)=32+27-11=48), so the complement has (60-48=12) elements. Find the union first, then subtract from (U).

What exam hint can help solve this Mathematics question?

(n\(A\cup B\)=32+27-11=48), इसलिए पूरक में (60-48=12) तत्व हैं। पहले संघ निकालें फिर (U) से घटाएं।