Question
Question: 200 delegates are to participate in a meeting which is to be held in a hall which has 7 doors. A del...
200 delegates are to participate in a meeting which is to be held in a hall which has 7 doors. A delegate can enter through any door and the time and order of the persons entered at each door is recorded. Thus 7 lists are obtained from 7 doors. The no. of different lists can be obtained is
A
206C6
B
206C6∠200
C
206C6.∠6
D
206C6
Answer
206C6∠200
Explanation
Solution
No. of diff. lists = 206C6 ∠200.