Question 119
Fifteen red, blue and green points are marked on a plane. It is known that the sum of the distances between the red points and the blue points is $51$, the sum of the distances between the red points and the green points is $39$, the sum of the distances between the blue points and the green points is $1$.
How many points of each color are marked? (Determine all possibilities.)
How many points of each color are marked? (Determine all possibilities.)