(9) अलग-अलग अक्षरों से (4) अक्षरों के पासवर्ड कितने बनेंगे यदि कोई अक्षर दोहराया नहीं जाए?

How many (4)-letter passwords can be formed from (9) distinct letters if no letter is repeated?

Explanation opens after your attempt
Correct Answer

A. (3024)

Step 1

Concept

Order matters in a password, so \(^{9}P_4=3024\). In exams, treat passwords or codes as permutations.

Step 2

Why this answer is correct

The correct answer is A. (3024). Order matters in a password, so \(^{9}P_4=3024\). In exams, treat passwords or codes as permutations.

Step 3

Exam Tip

पासवर्ड में क्रम महत्वपूर्ण है, इसलिए \(^{9}P_4=3024\)। परीक्षा में password या code को permutation समझें।

Question me issue ya doubt hai?

Answer, explanation, typing mistake ya suggestion directly hamari team ko bhejein. 📱Helpline (Call / WhatsApp): +91 7272824365

Related Mathematics Questions

FAQs

Mathematics Answer, Explanation and Revision Hints

(9) अलग-अलग अक्षरों से (4) अक्षरों के पासवर्ड कितने बनेंगे यदि कोई अक्षर दोहराया नहीं जाए? / How many (4)-letter passwords can be formed from (9) distinct letters if no letter is repeated?

Correct Answer: A. (3024). Explanation: पासवर्ड में क्रम महत्वपूर्ण है, इसलिए \(^{9}P_4=3024\)। परीक्षा में password या code को permutation समझें। / Order matters in a password, so \(^{9}P_4=3024\). In exams, treat passwords or codes as permutations.

Which concept should I revise for this Mathematics MCQ?

Order matters in a password, so \(^{9}P_4=3024\). In exams, treat passwords or codes as permutations.

What exam hint can help solve this Mathematics question?

पासवर्ड में क्रम महत्वपूर्ण है, इसलिए \(^{9}P_4=3024\)। परीक्षा में password या code को permutation समझें।