The product of two numbers is 120 and the sum of their squares is 289. The sum of the number is:

Answer: Option B

Let the numbers be x and y
Then, xy = 120 and x² + y² = 289
∴ (x + y)² = x² + y² + 2xy = 289 + (2 x 120) = 529
∴ x + y = $$\sqrt{529}$$  = 23