Write the numbers from 1 through 19 in the circles so that the numbers in every 3 circles on a straight line total 30.
Puzzle provided by Kordemsky: The Moscow Puzzles (Dover)
Solution: See figure below.
There are nine pairs of numbers that total 20 (1 + 19, 2 + 18, and so on). The remaining number, 10 goes in the center to make 30.
If you would like to rate this lesson, then please register. Riuscipisci bla feummod olenim dignit irit luptatum zzriliquamet la commodigna facilit prat.
