There are to be 6 homes built on a new development site. They could
be semi-detached, detached or terraced houses. How many different
combinations of these can you find?
This challenge is to design different step arrangements, which must
go along a distance of 6 on the steps and must end up at 6 high.
Suppose there is a train with 24 carriages which are going to be put together to make up some new trains. Can you find all the ways that this can be done?
Daman at St.Joseph's School in Vancouver, Canada; David from
Tithe Barn Primary School and Alice agreed on the answer to
Coloured Squares. David explains how he tackled it:
I did this puzzle by working through the clues one by one. I
used multilink to represent the colours and used pink instead of
I thought at first that the order on one of the lines was:
green, orange, blue. Then I knew that orange was underneath so I
did that too. Then I knew that yellow was to the left of purple and
orange so I altered it completely. I made the top row: red, blue,
green and underneath: yellow, purple, orange. Here is the image
that David sent: