यदि word में (9) letters हैं जिनमें (A) (2) बार, (B) (2) बार और (C) (3) बार आता है तो divisor क्या होगा?
If a word has (9) letters with (A) twice, (B) twice, and (C) three times, what will be the divisor?
Explanation opens after your attempt
Correct Answer
A. (2!2!3!)
Concept
Internal orders of each repeated group are not different, so divide by (2!2!3!). In exams treat repeated letters as separate groups.
Why this answer is correct
The correct answer is A. (2!2!3!). Internal orders of each repeated group are not different, so divide by (2!2!3!). In exams treat repeated letters as separate groups.
Exam Tip
हर repeated group के internal orders अलग नहीं होते इसलिए (2!2!3!) से भाग देते हैं। परीक्षा में repeated letters को अलग-अलग group मानें।
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