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In arrangements of (MISSISSIPPI), how many distinct arrangements have both (P)'s together?शब्द (MISSISSIPPI) की व्यवस्थाओं में दोनों (P) साथ हों, ऐसी कितनी भिन्न व्यवस्थाएं हैं?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (6300)(6300)
Treat both (P)'s as one block, giving (10) units with (I) and (S) each repeated four times. Hence the count is (10!/(4!4!)).दोनों (P) को एक खंड मानने पर (10) इकाइयां बनती हैं, जिनमें (I) और (S) चार-चार बार हैं। इसलिए संख्या (10!/(4!4!)) है।
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