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Aptitude | Arithmetic Aptitude 5 | Question 5
  • Difficulty Level : Easy
  • Last Updated : 20 Oct, 2015
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The product of two numbers is 108 and the sum of their squares is 225. The difference of the number is:

(A) 5
(B) 4
(C) 3
(D) None of these


Answer: (C)

Explanation:

Let the numbers be x and y.
Then xy = 108 and x2 + y2 = 225
(x –y)2 = x2 + y2 – 2xy
(x –y)2 = 225 – 216
(x –y)2 = 9
Therefore (x –y) = 3


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