\(यदि (U={1,2,\ldots,33}), (A={x:x\) 3 से विभाज्य है}), तो (A') में कितने अवयव सम हैं?

\(If (U={1,2,\ldots,33}), (A={x:x\) is divisible by 3}), how many even elements are in (A')?

Explanation opens after your attempt
Correct Answer

B. (11)

Step 1

Concept

From (1) to (33), there are (16) even numbers, and (6,12,18,24,30) are divisible by (3). So even elements in (A') are (16-5=11).

Step 2

Why this answer is correct

The correct answer is B. (11). From (1) to (33), there are (16) even numbers, and (6,12,18,24,30) are divisible by (3). So even elements in (A') are (16-5=11).

Step 3

Exam Tip

(1) से (33) तक (16) सम संख्याएँ हैं और उनमें (6,12,18,24,30) (3) से विभाज्य हैं। इसलिए (A') में सम अवयव (16-5=11) हैं।

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Mathematics Answer, Explanation and Revision Hints

\(यदि (U={1,2,\ldots,33}), (A={x:x\) 3 से विभाज्य है}), तो (A') में कितने अवयव सम हैं? \(/ If (U={1,2,\ldots,33}), (A={x:x\) is divisible by 3}), how many even elements are in (A')?

Correct Answer: B. (11). Explanation: (1) से (33) तक (16) सम संख्याएँ हैं और उनमें (6,12,18,24,30) (3) से विभाज्य हैं। इसलिए (A') में सम अवयव (16-5=11) हैं। / From (1) to (33), there are (16) even numbers, and (6,12,18,24,30) are divisible by (3). So even elements in (A') are (16-5=11).

Which concept should I revise for this Mathematics MCQ?

From (1) to (33), there are (16) even numbers, and (6,12,18,24,30) are divisible by (3). So even elements in (A') are (16-5=11).

What exam hint can help solve this Mathematics question?

(1) से (33) तक (16) सम संख्याएँ हैं और उनमें (6,12,18,24,30) (3) से विभाज्य हैं। इसलिए (A') में सम अवयव (16-5=11) हैं।