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The word (PAPER) has (P) twice. How many distinct letter arrangements are possible?शब्द (PAPER) में (P) दो बार आता है। इसके अलग-अलग अक्षर-क्रम कितने होंगे?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (60)(60)
Since (P) occurs twice, arrangements are (\frac{5!}{2!}=60). Divide by the factorial of the repeated letter.(P) दो बार समान है इसलिए व्यवस्थाएँ (\frac{5!}{2!}=60) होंगी। समान अक्षर के factorial से भाग दें।
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