CRE 6 - Seating arrangements | Modern Math - Permutation & Combination
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Answer the next 10 questions based on the information given below:
In how many ways can 16 people be seated
- (a)
16! - 1
- (b)
15!
- (c)
16!
- (d)
None of these
Solution
Discuss
ReportOn a circular table having 16 chairs?
- (a)
16! - 1
- (b)
15!
- (c)
16!
- (d)
None of these
On a circular table having 15 blue chairs & 1 green chair?
- (a)
16! - 1
- (b)
15!
- (c)
16!
- (d)
None of these
On a rectangular table having 5 chairs each on the longer sides and 3 chairs each on the shorter sides?
- (a)
8 × 15!
- (b)
15!
- (c)
16!
- (d)
4 × 15!
On a square table having 4 chairs on each side?
- (a)
15!
- (b)
16!
- (c)
8 × 15!
- (d)
4 × 15!
1 circular table with 9 chairs & rest 7 in a row?
- (a)
8! × 7!
- (b)
16C7 × 7! × 8!
- (c)
16C7 × 9! × 7!
- (d)
None of these
2 circular tables one with 10 chairs & other with 6 chairs?
- (a)
16C10 × 9! × 5!
- (b)
16C10 × 10! × 6!
- (c)
10! × 6!
- (d)
None of these
4 different circular tables each with 4 chairs?
- (a)
- (b)
(3!)4
- (c)
(4!)4
- (d)
None of these