(9) खिलाड़ियों की बल्लेबाजी क्रम में दो विशेष खिलाड़ी लगातार न आएं, ऐसे कितने क्रम हैं?
In the batting order of (9) players, how many orders have two particular players not consecutive?
Explanation opens after your attempt
B. (282240)
Concept
Subtract the consecutive cases \(2\cdot 8!\) from the total (9!). For non-consecutive conditions, subtract the bad block cases.
Why this answer is correct
The correct answer is B. (282240). Subtract the consecutive cases \(2\cdot 8!\) from the total (9!). For non-consecutive conditions, subtract the bad block cases.
Exam Tip
कुल (9!) क्रमों में से लगातार आने वाले \(2\cdot 8!\) क्रम घटते हैं। न-लगातार में खंड विधि से खराब केस घटाएं।
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