In how many ways can 15 people be seated around two round tables with seating capacities of 7 and 8 people?
A. 15! × 8!
B. 7! × 8!
C. 15C7 × 6! × 7!
D. 2 × 15C7 × 6! × 7!
E. 15C8 × 8!
Answer: Option C
A. 15! × 8!
B. 7! × 8!
C. 15C7 × 6! × 7!
D. 2 × 15C7 × 6! × 7!
E. 15C8 × 8!
Answer: Option C
A. 3! 4! 8! 4!
B. 3! 8!
C. 4! 4!
D. 8! 4! 4!
A. 7560,60,1680
B. 7890,120,650
C. 7650,200,4444
D. None of these
A. 8 × 9!
B. 8 × 8!
C. 7 × 9!
D. 9 × 8!
Why is (7-1)! Ways? Why the -1?