अंकों (1,2,3,4,5) से बिना पुनरावृत्ति कितनी (4)-अंकीय संख्याएँ बनेंगी?

How many (4)-digit numbers can be formed from digits (1,2,3,4,5) without repetition?

Explanation opens after your attempt
Correct Answer

D. (120)

Step 1

Concept

For four places, there are \(5\times4\times3\times2=120\) ways. Without repetition, choices keep decreasing.

Step 2

Why this answer is correct

The correct answer is D. (120). For four places, there are \(5\times4\times3\times2=120\) ways. Without repetition, choices keep decreasing.

Step 3

Exam Tip

चार स्थानों के लिए \(5\times4\times3\times2=120\) तरीके हैं। बिना पुनरावृत्ति में विकल्प घटते जाते हैं।

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अंकों (1,2,3,4,5) से बिना पुनरावृत्ति कितनी (4)-अंकीय संख्याएँ बनेंगी? / How many (4)-digit numbers can be formed from digits (1,2,3,4,5) without repetition?

Correct Answer: D. (120). Explanation: चार स्थानों के लिए \(5\times4\times3\times2=120\) तरीके हैं। बिना पुनरावृत्ति में विकल्प घटते जाते हैं। / For four places, there are \(5\times4\times3\times2=120\) ways. Without repetition, choices keep decreasing.

Which concept should I revise for this Mathematics MCQ?

For four places, there are \(5\times4\times3\times2=120\) ways. Without repetition, choices keep decreasing.

What exam hint can help solve this Mathematics question?

चार स्थानों के लिए \(5\times4\times3\times2=120\) तरीके हैं। बिना पुनरावृत्ति में विकल्प घटते जाते हैं।