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In how many ways can a captain, vice-captain and wicketkeeper be chosen from (10) players?(10) खिलाड़ियों में से कप्तान, उपकप्तान और विकेटकीपर चुनने के तरीके कितने हैं?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (720)(720)
The three posts are distinct, so ({}^{10}P_{3}=10\times9\times8=720). Order matters for different posts.तीन पद अलग हैं इसलिए ({}^{10}P_{3}=10\times9\times8=720)। अलग पदों में order महत्त्वपूर्ण होता है।
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