(12) वस्तुओं की व्यवस्थाओं की संख्या क्या होगी यदि उनमें (4) एक जैसी, (3) एक जैसी और (2) एक जैसी वस्तुएं हों तथा बाकी अलग हों?
What is the number of arrangements of (12) objects if (4) are identical of one kind, (3) are identical of another kind, (2) are identical of a third kind, and the rest are distinct?
Explanation opens after your attempt
D. (1663200)
Concept
The number of arrangements is (12!/(4!3!2!)). Divide by the factorial of each group of identical objects.
Why this answer is correct
The correct answer is D. (1663200). The number of arrangements is (12!/(4!3!2!)). Divide by the factorial of each group of identical objects.
Exam Tip
व्यवस्थाओं की संख्या (12!/(4!3!2!)) होगी। समान वस्तुओं के हर समूह के फैक्टोरियल से भाग देना चाहिए।
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