a school bus has 15 rows with two benches each ;each bench seats three. Sara prefers to sit directly next to megan . Tomas prefers to sit next to sara ,possibly across the aisle from her megan has no preference no child sits in the same seat twice if the children ride the bus to school and back every day which is the trip they need to break the preference for the first time? A)the trip to home on 22nd day. B) the trip to school on 23rd day. C) the trip to home on 23rd day. D) the trip to school on 24nrthd day.

• The arrangements can be * T S M * *
  T S M * * * and then * * * M S T..any other arrangemnts will tend to giv same results say fr example Mst and tsm are both same...so 15*3 its 45 and on 46th trip they have to break that is on returning back to home on 23rd day is the ans ..its c)
• 8 years agoHelpfull: Yes(11) No(1)
• dummy i think
  
• 8 years agoHelpfull: Yes(5) No(2)
• Mr. Admin, It does not matters if you copy questions from somewhere else, but be smart while copying. no fullstops, spell mistakes is frustrating.
• 5 years agoHelpfull: Yes(0) No(0)