Multiple choice general knowledge

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

  1. 20

  2. 23

  3. 169

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let the two numbers be x and y. We know xy = 120 and x² + y² = 289. Using (x + y)² = x² + 2xy + y², we get (x + y)² = 289 + 240 = 529. So x + y = 23, making option B correct.

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