Alternative: another possible logic.
Some people approach this puzzle differently, looking for implicit patterns in the numbers. For example, they may combine numbers in a way that reflects more complex sequences or manipulations. These variations enrich thinking and allow the discovery of new methods for solving the puzzles.
It's your turn!
Did you find 40 or another solution? This type of puzzle stimulates not only your logic, but also your creativity. Share your method in the comments and compare your ideas with others. Maybe you are a real puzzle genius!