यदि (n(A)=60), (n(B)=55), (n\(A\cap B\)=25) है, तो ठीक एक समुच्चय में आने वाले तत्वों की संख्या क्या है?

If (n(A)=60), (n(B)=55), and (n\(A\cap B\)=25), what is the number of elements belonging to exactly one set?

Explanation opens after your attempt
Correct Answer

A. (65)

Step 1

Concept

Exactly one is ((60-25)+(55-25)=65). Subtract the common elements separately from both sets.

Step 2

Why this answer is correct

The correct answer is A. (65). Exactly one is ((60-25)+(55-25)=65). Subtract the common elements separately from both sets.

Step 3

Exam Tip

ठीक एक (=(60-25)+(55-25)=65)। दोनों में आने वालों को दोनों समुच्चयों से अलग-अलग घटाएं।

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Mathematics Answer, Explanation and Revision Hints

यदि (n(A)=60), (n(B)=55), (n\(A\cap B\)=25) है, तो ठीक एक समुच्चय में आने वाले तत्वों की संख्या क्या है? / If (n(A)=60), (n(B)=55), and (n\(A\cap B\)=25), what is the number of elements belonging to exactly one set?

Correct Answer: A. (65). Explanation: ठीक एक (=(60-25)+(55-25)=65)। दोनों में आने वालों को दोनों समुच्चयों से अलग-अलग घटाएं। / Exactly one is ((60-25)+(55-25)=65). Subtract the common elements separately from both sets.

Which concept should I revise for this Mathematics MCQ?

Exactly one is ((60-25)+(55-25)=65). Subtract the common elements separately from both sets.

What exam hint can help solve this Mathematics question?

ठीक एक (=(60-25)+(55-25)=65)। दोनों में आने वालों को दोनों समुच्चयों से अलग-अलग घटाएं।