Q
If x:y = 7:3, then the value of \( \frac{xy + x^2}{x^2 - y^2} \) is:
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A
A. 1/2
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B
B. 2/3
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C
C. 3/4
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D
D. 1/5
Correct Answer:
C. C. 3/4
Explanation:
Put x = 7 and y = 3
\( \frac{xy + x^2}{x^2 - y^2} = \frac{21 + 49}{49 - 9} = \frac{70}{40} = \frac{7}{4} \)
