शब्द (SCHOOL) में (O) दो बार आता है। इसके अलग अक्षर-क्रम कितने होंगे?
The word (SCHOOL) has (O) twice. How many distinct letter arrangements are possible?
Explanation opens after your attempt
C. (360)
Concept
There are (6) letters and two identical (O)'s, so \(\frac{6!}{2!}=360\). Use a denominator for a repeated letter.
Why this answer is correct
The correct answer is C. (360). There are (6) letters and two identical (O)'s, so \(\frac{6!}{2!}=360\). Use a denominator for a repeated letter.
Exam Tip
कुल (6) अक्षर हैं और (O) दो समान हैं इसलिए \(\frac{6!}{2!}=360\)। repeated letter के लिए denominator लगाएं।
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