What is the value of $x^2 + y^2$? Statement I: $xy = 5$ Statement II: $x + y = 10$
- A. Statement I alone is sufficient
- B. Both statements together are sufficient
- C. Either statement alone is sufficient
- D. Even both statements together are not sufficient
✅ Correct Answer: Both statements together are sufficient
Explanation
From statement II $x + y = 10$ Squaring both sides $(x + y)^2 = 100$ $x^2 + y^2 + 2xy = 100$ From statement I $xy = 5$ So $x^2 + y^2 + 10 = 100$ $x^2 + y^2 = 90$ Both statements together are required
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