(5) अलग-अलग लिफाफों पर (5) अलग-अलग टिकट चिपकाने के तरीके कितने हैं?

In how many ways can (5) different stamps be pasted on (5) different envelopes?

Explanation opens after your attempt
Correct Answer

A. (120)

Step 1

Concept

(5) different stamps can be pasted on (5) different envelopes in (5!=120) ways. Factorial is useful in one-to-one matching.

Step 2

Why this answer is correct

The correct answer is A. (120). (5) different stamps can be pasted on (5) different envelopes in (5!=120) ways. Factorial is useful in one-to-one matching.

Step 3

Exam Tip

(5) अलग टिकट (5) अलग लिफाफों पर (5!=120) तरीकों से लगेंगे। one-to-one matching में factorial उपयोगी है।

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Mathematics Answer, Explanation and Revision Hints

(5) अलग-अलग लिफाफों पर (5) अलग-अलग टिकट चिपकाने के तरीके कितने हैं? / In how many ways can (5) different stamps be pasted on (5) different envelopes?

Correct Answer: A. (120). Explanation: (5) अलग टिकट (5) अलग लिफाफों पर (5!=120) तरीकों से लगेंगे। one-to-one matching में factorial उपयोगी है। / (5) different stamps can be pasted on (5) different envelopes in (5!=120) ways. Factorial is useful in one-to-one matching.

Which concept should I revise for this Mathematics MCQ?

(5) different stamps can be pasted on (5) different envelopes in (5!=120) ways. Factorial is useful in one-to-one matching.

What exam hint can help solve this Mathematics question?

(5) अलग टिकट (5) अलग लिफाफों पर (5!=120) तरीकों से लगेंगे। one-to-one matching में factorial उपयोगी है।