यदि \(A\subseteq U\), (n(U)=60), (n(A)=28), और (n(A')=x) है, तो (x) का मान क्या है?

If \(A\subseteq U\), (n(U)=60), (n(A)=28), and (n(A')=x), what is the value of (x)?

Explanation opens after your attempt
Correct Answer

B. (32)

Step 1

Concept

Elements of the complement are in (U) but not in (A). Therefore (x=60-28=32).

Step 2

Why this answer is correct

The correct answer is B. (32). Elements of the complement are in (U) but not in (A). Therefore (x=60-28=32).

Step 3

Exam Tip

पूरक के तत्व (U) में होते हैं पर (A) में नहीं होते। इसलिए (x=60-28=32) है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A\subseteq U\), (n(U)=60), (n(A)=28), और (n(A')=x) है, तो (x) का मान क्या है? / If \(A\subseteq U\), (n(U)=60), (n(A)=28), and (n(A')=x), what is the value of (x)?

Correct Answer: B. (32). Explanation: पूरक के तत्व (U) में होते हैं पर (A) में नहीं होते। इसलिए (x=60-28=32) है। / Elements of the complement are in (U) but not in (A). Therefore (x=60-28=32).

Which concept should I revise for this Mathematics MCQ?

Elements of the complement are in (U) but not in (A). Therefore (x=60-28=32).

What exam hint can help solve this Mathematics question?

पूरक के तत्व (U) में होते हैं पर (A) में नहीं होते। इसलिए (x=60-28=32) है।