शब्द (MISSISSIPPI) के अक्षरों की कितनी व्यवस्थाएं होंगी जिनमें सभी (S) साथ रहें?
How many arrangements of the letters of (MISSISSIPPI) are possible in which all (S)'s are together?
Explanation opens after your attempt
A. (1260)
Concept
Treat the four (S)'s as one block, giving (8) units with (I) four times and (P) twice. The number is \(\frac{8!}{4!2!}=840\).
Why this answer is correct
The correct answer is A. (1260). Treat the four (S)'s as one block, giving (8) units with (I) four times and (P) twice. The number is \(\frac{8!}{4!2!}=840\).
Exam Tip
चार (S) को एक ब्लॉक मानें, तो (8) इकाइयों में (I) चार और (P) दो बार हैं। संख्या \(\frac{8!}{4!2!}=840\) है।
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