शब्द (SUCCESS) के अक्षरों की व्यवस्थाओं में सभी स्वर साथ हों, ऐसी व्यवस्थाओं की संख्या कितनी है?
In arrangements of the letters of (SUCCESS), how many have all vowels together?
Explanation opens after your attempt
D. (120)
Concept
Treat vowels (U,E) as one block; among (5) objects, (S) and (C) repeat twice, giving \(\frac{5!}{2!,2!}\times2!\). Exam tip: count the internal order of the vowel block separately.
Why this answer is correct
The correct answer is D. (120). Treat vowels (U,E) as one block; among (5) objects, (S) and (C) repeat twice, giving \(\frac{5!}{2!,2!}\times2!\). Exam tip: count the internal order of the vowel block separately.
Exam Tip
स्वर (U,E) को एक खंड मानें; (5) वस्तुओं में (S) दो और (C) दो हैं, इसलिए \(\frac{5!}{2!,2!}\times2!\) मिलता है। परीक्षा में स्वर-खंड के अंदरूनी क्रम को अलग गिनें।
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