Waiting for Blast Off
10 space travellers are waiting to board their spaceships.
There are two rows of seats in the waiting room - a row of 10 red
chairs facing a row of 10 blue chairs.
6 people are sitting in pairs. The other 4 are sitting
alone.
Between the singles or pairs there are always one or two spare
seats.
Nobody is sitting directly opposite anyone else.
Where are they all sitting?
Ella (Wesley College Prep School, Melbourne Australia) and Kristian (Even Swindon Junior School UK) sent in a correct solution each. Christina (Malborough Primary School) found four solutions and said that there were more.
The team from The Mount School, York UK sent in loads! Well done Kate, Katherine, Laura, Dominica, Stephanie and Katherine B (and an older pupil who acted as graphic artist!).
These 8 have 7 on one side and 3 on the other.
This 10 have 6 on one side and 4 on the other.
These 8 have 5 on each side.
We found 26 ways of doing this altogether and can't find any more.