यदि (n(U)=84) और (n(A)=2n\(A^c\)) है, तो (n\(A^c\)) कितना होगा?

If (n(U)=84) and (n(A)=2n\(A^c\)), what is (n\(A^c\))?

Explanation opens after your attempt
Correct Answer

A. (28)

Step 1

Concept

Let (n\(A^c\)=x), then (n(A)=2x). Thus (2x+x=84), giving (x=28).

Step 2

Why this answer is correct

The correct answer is A. (28). Let (n\(A^c\)=x), then (n(A)=2x). Thus (2x+x=84), giving (x=28).

Step 3

Exam Tip

मान लें (n\(A^c\)=x), तब (n(A)=2x)। इसलिए (2x+x=84) से (x=28) मिलेगा।

Question me issue ya doubt hai?

Answer, explanation, typing mistake ya suggestion directly hamari team ko bhejein. 📱Helpline (Call / WhatsApp): +91 7272824365

Related Mathematics Questions

FAQs

Mathematics Answer, Explanation and Revision Hints

यदि (n(U)=84) और (n(A)=2n\(A^c\)) है, तो (n\(A^c\)) कितना होगा? / If (n(U)=84) and (n(A)=2n\(A^c\)), what is (n\(A^c\))?

Correct Answer: A. (28). Explanation: मान लें (n\(A^c\)=x), तब (n(A)=2x)। इसलिए (2x+x=84) से (x=28) मिलेगा। / Let (n\(A^c\)=x), then (n(A)=2x). Thus (2x+x=84), giving (x=28).

Which concept should I revise for this Mathematics MCQ?

Let (n\(A^c\)=x), then (n(A)=2x). Thus (2x+x=84), giving (x=28).

What exam hint can help solve this Mathematics question?

मान लें (n\(A^c\)=x), तब (n(A)=2x)। इसलिए (2x+x=84) से (x=28) मिलेगा।