शब्द (BANANA) के अक्षरों की कितनी व्यवस्थाएं होंगी जिनमें दोनों (N) साथ आएं?

How many arrangements of the letters of (BANANA) are possible in which both (N)'s are together?

Explanation opens after your attempt
Correct Answer

A. (20)

Step 1

Concept

Treat the two (N)'s as one block, giving units (NN,B,A,A,A). The number is \(\frac{5!}{3!}=20\).

Step 2

Why this answer is correct

The correct answer is A. (20). Treat the two (N)'s as one block, giving units (NN,B,A,A,A). The number is \(\frac{5!}{3!}=20\).

Step 3

Exam Tip

दो (N) को एक ब्लॉक मानें तो इकाइयां (NN,B,A,A,A) हैं। संख्या \(\frac{5!}{3!}=20\) होगी।

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शब्द (BANANA) के अक्षरों की कितनी व्यवस्थाएं होंगी जिनमें दोनों (N) साथ आएं? / How many arrangements of the letters of (BANANA) are possible in which both (N)'s are together?

Correct Answer: A. (20). Explanation: दो (N) को एक ब्लॉक मानें तो इकाइयां (NN,B,A,A,A) हैं। संख्या \(\frac{5!}{3!}=20\) होगी। / Treat the two (N)'s as one block, giving units (NN,B,A,A,A). The number is \(\frac{5!}{3!}=20\).

Which concept should I revise for this Mathematics MCQ?

Treat the two (N)'s as one block, giving units (NN,B,A,A,A). The number is \(\frac{5!}{3!}=20\).

What exam hint can help solve this Mathematics question?

दो (N) को एक ब्लॉक मानें तो इकाइयां (NN,B,A,A,A) हैं। संख्या \(\frac{5!}{3!}=20\) होगी।