शब्द (COCO) के अलग-अलग arrangements कितने होंगे?
How many distinct arrangements are possible for the word (COCO)?
Explanation opens after your attempt
C. (6)
Concept
(C) occurs twice and (O) occurs twice, so \(\frac{4!}{2!2!}=6\). Divide by both repeated letters.
Why this answer is correct
The correct answer is C. (6). (C) occurs twice and (O) occurs twice, so \(\frac{4!}{2!2!}=6\). Divide by both repeated letters.
Exam Tip
(C) दो बार और (O) दो बार हैं इसलिए \(\frac{4!}{2!2!}=6\)। दो repeated letters हों तो दोनों से भाग दें।
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