Answer: B. A piece of land surrounded by water on three sides
N=-55 -n=11x5 -n= 55 n=-55
(multiply both sides by -1)
Answer:
4
Step-by-step explanation:
Final list of friends = 10
Possible number of friends who can sit close to the head table = 6
This is a question of the number of combinations in choosing 6 friends from the list of 10 friends.
That is,
Number of ways = 10C6 = (10!)/[6!*(10-6)!] = 3628800/(720*24) = 210 ways.