शब्द (LEVEL) में (5) अक्षर हैं, (L) दो बार और (E) दो बार आता है। अलग व्यवस्थाएँ कितनी होंगी?
The word (LEVEL) has (5) letters, with (L) twice and (E) twice. How many distinct arrangements are possible?
Explanation opens after your attempt
C. (30)
Concept
The arrangements are \(\frac{5!}{2!2!}=30\). Do not forget to divide by factorials of identical letters.
Why this answer is correct
The correct answer is C. (30). The arrangements are \(\frac{5!}{2!2!}=30\). Do not forget to divide by factorials of identical letters.
Exam Tip
व्यवस्थाएँ \(\frac{5!}{2!2!}=30\) होंगी। समान अक्षरों के factorial से भाग देना न भूलें।
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