10-couples-are-invited-to-a-dinner-and-should-be-seated-at-a-round-table-in-how-many-ways-can-the-host-do-this-1-generally-2-if-two-men-should-not-sit-next-to-each-other-3-as-2-but-two-spe Tinku Tara April 5, 2025 Permutation and Combination 0 Comments FacebookTweetPin Question Number 218299 by mr W last updated on 05/Apr/25 10couplesareinvitedtoadinnerandshouldbeseatedataroundtable.inhowmanywayscanthehostdothis,1)generally2)iftwomenshouldnotsitnexttoeachother3)as2),buttwospeicialcouplesshouldnotsitnexttoeachother Commented by Tawa11 last updated on 05/Apr/25 Ijusttrysir.(1)(20−1)!=19!(2)9!×10!(3)9!×10!−2×8!×10! Commented by mr W last updated on 05/Apr/25 pleaseexplainyoursolutionfor(3).sayHiarethehusbandsandWiarethewives.(i=1,2,…,10)H1andW1arethecouple1,H2andW2arethecouple2.ItismeantthatH1maynotsitnexttoW2andH2maynotsitnexttoW1.butcertainlyH1maysitnexttoW1andH2maysitnexttoW2. Commented by mehdee7396 last updated on 05/Apr/25 9!×8! Terms of Service Privacy Policy Contact: info@tinkutara.com FacebookTweetPin Post navigation Previous Previous post: Question-218280Next Next post: Evaluate-0-pi-2-sin-x-sin-3-x-cos-3-x-dx- Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Save my name, email, and website in this browser for the next time I comment.