Use 3 numbers from the set {10, 20, 25, 30, 40, 50} to make 100.

Answer

To solve this puzzle, we need to find three numbers from the given list (10, 20, 25, 30, 40, 50) that add up to exactly 100. Let's look for combinations of three numbers: One valid solution is 50 + 40 + 10 = 100. Another valid solution is 50 + 30 + 20 = 100. Both sets of numbers are part of the original list and their sum equals one hundred.