Civil Services Examination · प्रश्न 26
If 4 ≤ x ≤ 8 and 2 ≤ y ≤ 7, then what is the ratio of maximum value of (x + y) to minimum value of (x - y)?
उत्तर देखें और व्याख्या
उत्तर: (D) None of the above
व्याख्या
Max (x + y) = 15 and min (x - y) = 4 - 7 = -3, so the ratio is -5, which is not listed. (Answer as per the official UPSC answer key.)