(6) अलग-अलग पत्रों को (8) अलग-अलग डिब्बों में एक-एक करके रखने के कितने तरीके हैं?
In how many ways can (6) distinct letters be placed one each into (8) distinct boxes?
Explanation opens after your attempt
Correct Answer
A. (20160)
Concept
We choose ordered positions for (6) letters among (8) distinct boxes, so \(^{8}P_6=20160\). In exams, distinct boxes make it an arrangement.
Why this answer is correct
The correct answer is A. (20160). We choose ordered positions for (6) letters among (8) distinct boxes, so \(^{8}P_6=20160\). In exams, distinct boxes make it an arrangement.
Exam Tip
(8) अलग डिब्बों में से (6) क्रमित स्थान चुने जाते हैं, इसलिए \(^{8}P_6=20160\)। परीक्षा में boxes अलग हों तो arrangement मानें।
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