यदि \(U=\{10,20,30,40,50\}\), \(A=\{10,20,40\}\) और \(B=\{20,30\}\) है, तो (A-B) क्या है?

If \(U=\{10,20,30,40,50\}\), \(A=\{10,20,40\}\), and \(B=\{20,30\}\), what is (A-B)?

Explanation opens after your attempt
Correct Answer

A. ( {10,40} )

Step 1

Concept

The common element (20) is removed from (A), leaving ({10,40}). Even when (U) is given, find the difference from (A) and (B).

Step 2

Why this answer is correct

The correct answer is A. ( {10,40} ). The common element (20) is removed from (A), leaving ({10,40}). Even when (U) is given, find the difference from (A) and (B).

Step 3

Exam Tip

(A) से (B) का समान अवयव (20) हटता है और ({10,40}) बचता है। (U) दिए होने पर भी अंतर (A) और (B) से निकालें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(U=\{10,20,30,40,50\}\), \(A=\{10,20,40\}\) और \(B=\{20,30\}\) है, तो (A-B) क्या है? / If \(U=\{10,20,30,40,50\}\), \(A=\{10,20,40\}\), and \(B=\{20,30\}\), what is (A-B)?

Correct Answer: A. ( {10,40} ). Explanation: (A) से (B) का समान अवयव (20) हटता है और ({10,40}) बचता है। (U) दिए होने पर भी अंतर (A) और (B) से निकालें। / The common element (20) is removed from (A), leaving ({10,40}). Even when (U) is given, find the difference from (A) and (B).

Which concept should I revise for this Mathematics MCQ?

The common element (20) is removed from (A), leaving ({10,40}). Even when (U) is given, find the difference from (A) and (B).

What exam hint can help solve this Mathematics question?

(A) से (B) का समान अवयव (20) हटता है और ({10,40}) बचता है। (U) दिए होने पर भी अंतर (A) और (B) से निकालें।