Lessons

General Aptitude
27.1 Problems on Numbers - General Questions

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Q.

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

View Answer

Correct choice: B

Explanation:

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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