अंकों (0,1,2,3,4,5,6) से बिना पुनरावृत्ति (4)-अंकीय सम संख्याएं कितनी बनेंगी?

Using the digits (0,1,2,3,4,5,6) without repetition how many (4)-digit even numbers can be formed?

Explanation opens after your attempt
Correct Answer

C. (300) संख्याएं(300) numbers

Step 1

Concept

If the last digit is (0) there are \(6 \times 5 \times 4=120\) ways and if it is (2,4,6) there are \(3 \times 5 \times 5 \times 4=300\) ways. The total is (420).

Step 2

Why this answer is correct

The correct answer is C. (300) संख्याएं / (300) numbers. If the last digit is (0) there are \(6 \times 5 \times 4=120\) ways and if it is (2,4,6) there are \(3 \times 5 \times 5 \times 4=300\) ways. The total is (420).

Step 3

Exam Tip

अंतिम अंक (0) हो तो \(6 \times 5 \times 4=120\) तरीके हैं और अंतिम अंक (2,4,6) हो तो \(3 \times 5 \times 5 \times 4=300\) तरीके हैं। कुल (420) है।

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Mathematics Answer, Explanation and Revision Hints

अंकों (0,1,2,3,4,5,6) से बिना पुनरावृत्ति (4)-अंकीय सम संख्याएं कितनी बनेंगी? / Using the digits (0,1,2,3,4,5,6) without repetition how many (4)-digit even numbers can be formed?

Correct Answer: C. (300) संख्याएं / (300) numbers. Explanation: अंतिम अंक (0) हो तो \(6 \times 5 \times 4=120\) तरीके हैं और अंतिम अंक (2,4,6) हो तो \(3 \times 5 \times 5 \times 4=300\) तरीके हैं। कुल (420) है। / If the last digit is (0) there are \(6 \times 5 \times 4=120\) ways and if it is (2,4,6) there are \(3 \times 5 \times 5 \times 4=300\) ways. The total is (420).

Which concept should I revise for this Mathematics MCQ?

If the last digit is (0) there are \(6 \times 5 \times 4=120\) ways and if it is (2,4,6) there are \(3 \times 5 \times 5 \times 4=300\) ways. The total is (420).

What exam hint can help solve this Mathematics question?

अंतिम अंक (0) हो तो \(6 \times 5 \times 4=120\) तरीके हैं और अंतिम अंक (2,4,6) हो तो \(3 \times 5 \times 5 \times 4=300\) तरीके हैं। कुल (420) है।