Mathematics - Permutation & Combination Question with Solution | TestHub
Two Indian couples, two American couples and one unmarried person are seated or interviewed. Match each count. Column I: (A) In a row, an Indian wife and an American wife flank the unmarried person. (B) In a row, the unmarried person sits in the middle. (C) At a circular table, an Indian and American wife flank the unmarried person. (D) Nine interviews, with each wife after her husband. Column II: (p) 22680 (q) 5760 (r) 40320 (s) 24320
Column I | Column II |
|---|---|
(A) In a row, an Indian wife and an American wife flank the unmarried person. | (p) 22680 |
(B) In a row, the unmarried person sits in the middle. | (q) 5760 |
(C) At a circular table, an Indian and American wife flank the unmarried person. | (r) 40320 |
(D) Nine interviews, with each wife after her husband. | (s) 24320 |
Options:
Answer:
Solution:
A: . B: . C: fix the unmarried seat and order flanking spouses in ways. D: four independent husband-before-wife restrictions yield .
