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The sum of the squares of two positive integers is 1025 and difference of their squares is 225 . The difference of the numbers is what percent of the
Question

The sum of the squares of two positive integers is 1025 and difference of their squares is 225 . The difference of the numbers is what percent of the product of these numbers ?

A.

10%

B.

5%

C.

1%

D.

2%

Correct option is C

Given:
Sum of squares = 1025
Difference of squares = 225
Formula Used:
a2+b2=Xa^2 + b^2 = X​​
a2b2=Ya^2 - b^2 = Y​​
Percentage = DifferenceProduct×100 \frac{Difference}{Product} × 100​​
Solution:
Let the two positive integers be a and b (where a > b).
a2+b2=1025a^2 + b^2 = 1025​​
a2b2=225a^2 - b^2 = 225​​
Add the two equations to solve for a2:a^2:​​
2a2=12502a^2 = 1250​​
a2=625 a=25a^2 = 625 \implies a = 25​​
Subtract the second equation from the first to solve for b2:b^2:​​
2b2=8002b^2 = 800​​
b2=400 b=20b^2 = 400 \implies b = 20​​
Calculate the difference and the product of the numbers.
Difference = a - b = 25 - 20 = 5
Product = a × b = 25 × 20 = 500
Calculate the percentage.
Percentage = 5500×100=1% \frac{5}{500} × 100 = 1\%​​
Final Answer
So the correct answer is (c)

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