शब्द (NOTE) के अक्षरों से ऐसे कितने क्रम बनेंगे जिनमें पहला अक्षर (N) हो?
How many arrangements of the letters of (NOTE) are possible if the first letter is (N)?
Explanation opens after your attempt
A. (6)
Concept
The first position is fixed and the remaining (3) letters can be arranged in (3!=6) ways. Separate fixed positions first.
Why this answer is correct
The correct answer is A. (6). The first position is fixed and the remaining (3) letters can be arranged in (3!=6) ways. Separate fixed positions first.
Exam Tip
पहला स्थान निश्चित है और शेष (3) अक्षर (3!=6) तरीकों से लगेंगे। fixed position को पहले अलग करें।
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