by Angela Newing
Dancers numbered 1 to 9 arranged themselves in the form of a three by three magic square.
Three of the five dancers wearing red were in the first row; three of the four dancers wearing blue were in another row.
One dancer wearing red noticed that the sum of the numbers of the other four ‘red’ dancers was equal to the sum of the numbers of the four ‘blue’ dancers.
What were the numbers of the other dancers wearing blue if one of them was number eight?