(6) letters और (6) envelopes में कोई letter सही envelope में न जाए, तो count कौन-सी है?

For (6) letters and (6) envelopes, if no letter goes into its correct envelope, which count is correct?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. \(D_6=265\)

Step 1

Concept

This is a derangement of (6) objects and \(D_6=265\). In exams treat letter-envelope mismatch as derangement.

Step 2

Why this answer is correct

The correct answer is A. \(D_6=265\). This is a derangement of (6) objects and \(D_6=265\). In exams treat letter-envelope mismatch as derangement.

Step 3

Exam Tip

यह (6) objects का derangement है और \(D_6=265\) होता है। परीक्षा में letters-envelope mismatch को derangement समझें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

(6) letters और (6) envelopes में कोई letter सही envelope में न जाए, तो count कौन-सी है? / For (6) letters and (6) envelopes, if no letter goes into its correct envelope, which count is correct?

Correct Answer: A. \(D_6=265\). Explanation: यह (6) objects का derangement है और \(D_6=265\) होता है। परीक्षा में letters-envelope mismatch को derangement समझें। / This is a derangement of (6) objects and \(D_6=265\). In exams treat letter-envelope mismatch as derangement.

Which concept should I revise for this Mathematics MCQ?

This is a derangement of (6) objects and \(D_6=265\). In exams treat letter-envelope mismatch as derangement.

What exam hint can help solve this Mathematics question?

यह (6) objects का derangement है और \(D_6=265\) होता है। परीक्षा में letters-envelope mismatch को derangement समझें।