(13) खिलाड़ियों में से (6) खिलाड़ी चुनने हैं। (3) विशेष खिलाड़ियों में से कम से कम (1) और अधिकतम (2) चुने जाएं। कितने तरीके हैं?
From (13) players (6) players are to be selected. At least (1) and at most (2) of (3) special players are selected. How many ways are there?
Explanation opens after your attempt
Correct Answer
A. (1470)
Concept
The number of special players can be (1) or (2). The total is \(\binom{3}{1}\binom{10}{5}+\binom{3}{2}\binom{10}{4}=1470\).
Why this answer is correct
The correct answer is A. (1470). The number of special players can be (1) or (2). The total is \(\binom{3}{1}\binom{10}{5}+\binom{3}{2}\binom{10}{4}=1470\).
Exam Tip
विशेष खिलाड़ी (1) या (2) चुने जा सकते हैं। कुल \(\binom{3}{1}\binom{10}{5}+\binom{3}{2}\binom{10}{4}=1470\) है।
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