Question

How would you place the numbers 10, 20, 30, 40,
50, 60, 70 and 80 so that each side of the square adds up to 150?

Answer 1

Given:

Numbers: 10, 20, 30, 40,  50, 60, 70, and 80

Each side of the square adds up to 150

To find:

How would you place the numbers 10, 20, 30, 40,  50, 60, 70, and 80 so that each side of the square adds up to 150?

Solution:

30     50     70

40               20

80     10      60

30 + 50 + 70 = 150

70 + 20 + 60 = 150

60 + 10 + 80 = 150

80 + 40 + 30 = 150