If x:y = 7:3, then the value of \( \frac{xy + x^2}{x^2 - y^2} \) is:

A. 1/2
B. 2/3

C. 3/4

D. 1/5

Explanation: Put x = 7 and y = 3<br> \( \frac{xy + x^2}{x^2 - y^2} = \frac{21 + 49}{49 - 9} = \frac{70}{40} = \frac{7}{4} \)

Occurrence: PPSC - ASSISTANT FOOD CONTROLLER (BS 15) 09J17J2022 - FOOD DEPARTMENT - 2023