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In how many ways can (6) students be seated on (8) distinct chairs?(6) विद्यार्थियों को (8) अलग-अलग कुर्सियों पर कितने तरीकों से बैठाया जा सकता है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (20160)(20160)
The chairs are distinct and (6) students are seated, so (^{8}P_6=20160). In exams, permutation may apply even when some places remain empty.कुर्सियां अलग हैं और (6) विद्यार्थी बैठेंगे, इसलिए (^{8}P_6=20160)। परीक्षा में खाली स्थानों के बावजूद permutation लग सकता है।
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