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How many arrangements of (SCHOOL) have the two (O)'s not together?शब्द (SCHOOL) के अक्षरों की कितनी व्यवस्थाएं होंगी जिनमें दोनों (O) साथ न हों?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (240)(240)
Subtract the together cases (5!) from the total (6!/2!). For not-together conditions, subtract together arrangements from total.कुल (6!/2!) में से (O) साथ वाली (5!) व्यवस्थाएं घटाएं। न-साथ वाली शर्त में कुल से साथ वाली व्यवस्थाएं घटाएं।
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