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In arrangements of (BALLOON), how many distinct arrangements have both (L)'s together?शब्द (BALLOON) की व्यवस्थाओं में दोनों (L) साथ हों, ऐसी कितनी भिन्न व्यवस्थाएं हैं?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (360)(360)
Treat the two (L)'s as one block, giving (6) units with (O) repeated twice, so the count is (6!/2!). Use the block method for together conditions.दोनों (L) को एक खंड मानने पर (6) इकाइयां हैं और (O) दो बार है, इसलिए (6!/2!) है। साथ वाली शर्त में खंड विधि लगाएं।
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