यदि (U) सप्ताह के सभी दिनों का समुच्चय है और (A) में सोमवार, बुधवार, शुक्रवार हैं तो (A') में कितने दिन होंगे?

If (U) is the set of all days of the week and (A) contains Monday, Wednesday, and Friday, how many days are in (A')?

Explanation opens after your attempt
Correct Answer

B. (4)

Step 1

Concept

A week has seven days and (A) has three days. Therefore the complement has four days.

Step 2

Why this answer is correct

The correct answer is B. (4). A week has seven days and (A) has three days. Therefore the complement has four days.

Step 3

Exam Tip

सप्ताह में सात दिन होते हैं और (A) में तीन दिन हैं। इसलिए पूरक में चार दिन होंगे।

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Mathematics Answer, Explanation and Revision Hints

यदि (U) सप्ताह के सभी दिनों का समुच्चय है और (A) में सोमवार, बुधवार, शुक्रवार हैं तो (A') में कितने दिन होंगे? / If (U) is the set of all days of the week and (A) contains Monday, Wednesday, and Friday, how many days are in (A')?

Correct Answer: B. (4). Explanation: सप्ताह में सात दिन होते हैं और (A) में तीन दिन हैं। इसलिए पूरक में चार दिन होंगे। / A week has seven days and (A) has three days. Therefore the complement has four days.

Which concept should I revise for this Mathematics MCQ?

A week has seven days and (A) has three days. Therefore the complement has four days.

What exam hint can help solve this Mathematics question?

सप्ताह में सात दिन होते हैं और (A) में तीन दिन हैं। इसलिए पूरक में चार दिन होंगे।