शब्द (PROBABILITY) की व्यवस्थाओं में सभी स्वर साथ हों, ऐसी कितनी भिन्न व्यवस्थाएं हैं?
In arrangements of (PROBABILITY), how many distinct arrangements have all vowels together?
Explanation opens after your attempt
Correct Answer
C. (241920)
Concept
Inside the vowel block there are (4!/2!) arrangements, and outside there are (8!/2!) arrangements. Divide for repeated consonants and vowels.
Why this answer is correct
The correct answer is C. (241920). Inside the vowel block there are (4!/2!) arrangements, and outside there are (8!/2!) arrangements. Divide for repeated consonants and vowels.
Exam Tip
स्वर-खंड के भीतर (4!/2!) और बाहर (8!/2!) व्यवस्थाएं हैं। दोहराए व्यंजन और स्वर दोनों से भाग दें।
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