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In arrangements of (PARALLEL), how many distinct arrangements have all (L)'s together?शब्द (PARALLEL) की व्यवस्थाओं में सभी (L) साथ हों, ऐसी कितनी भिन्न व्यवस्थाएं हैं?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (360)(360)
Treat the three (L)'s as one block, giving (6) units with (A) repeated twice, so the count is (6!/2!). A block of identical letters acts as one unit.तीनों (L) को एक खंड मानने पर (6) इकाइयां हैं और (A) दो बार है, इसलिए (6!/2!) है। समान अक्षरों का खंड केवल एक इकाई माना जाता है।
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