शब्द (MOON) में (O) दो बार आता है। इसके अलग-अलग arrangements कितने होंगे?
The word (MOON) has (O) twice. How many distinct arrangements are possible?
Explanation opens after your attempt
D. (12)
Concept
There are (4) letters and two identical (O)'s, so \(\frac{4!}{2!}=12\). Use a denominator for repeated letters.
Why this answer is correct
The correct answer is D. (12). There are (4) letters and two identical (O)'s, so \(\frac{4!}{2!}=12\). Use a denominator for repeated letters.
Exam Tip
कुल अक्षर (4) हैं और (O) दो समान हैं इसलिए \(\frac{4!}{2!}=12\)। repeated letters में denominator लगाएं।
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