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

  • 120
  • 223
  • 3169
  • 4None of these
Answer:- 1
Explanation:-

Solution:
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 = √529 = 23.

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