If the difference of the squares of two numbers is 580 and their sum Is 58. then the difference between the numbers will be

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RRB Junior Clerk Exam (Allahabad) 2009 click here to view all questions

If the difference of the squares of two numbers is 580 and their sum Is 58. then the difference between the numbers will be

A10

B12

C29

D16

Nithin K ? Apr 16 '2018 at 20:47

Answer is : A [10]

Explanation:

\(x^2-y^2=580\)

and \(x +y=58\)

\(\therefore x-y= \frac{x^2-y^2}{x+y}=\frac{580}{58}=10\)

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Answer is : A [10] Explanation: \(x^2-y^2=580\) and \(x +y=58\) \(\therefore x-y= \frac{x^2-y^2}{x+y}=\frac{580}{58}=10\) Nithin K ? answered Apr 16 '2018 at 20:47 All Comments

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