JEE Advanced Mathematics question
A cabinet of ministers consists of 11 ministers, one minister being the chief minister. A meeting is to be held in a room having a round table and 11 chairs round it, one of them being meant for the chairman. The number of ways in which the ministers can take their chairs, the chief minister occupying the chairman's place, is
Answer: (C)
Solution
The chief minister's seat is fixed (the chairman's chair). Once that chair is fixed, the other 10 chairs are distinguishable by their position relative to
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