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
B. (4)
Concept
A week has seven days and (A) has three days. Therefore the complement has four days.
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.
Exam Tip
सप्ताह में सात दिन होते हैं और (A) में तीन दिन हैं। इसलिए पूरक में चार दिन होंगे।
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