InterviewSolution
Saved Bookmarks
| 1. |
In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.I. x2 + 31x + 240 = 0II. 5y2 + 60y + 135 = 01. x > y2. x < y3. x ≥ y4. x ≤ y5. x = y or relationship between x and y cannot be established. |
|||||||||||||||
|
Answer» Correct Answer - Option 2 : x < y Calculation∶ I. x2 + 31x + 240 = 0 ⇒ x2 + 15x + 16x + 240 = 0 ⇒ x (x + 15) + 16(x + 15) = 0 ⇒ (x + 15) (x + 16) = 0 ⇒ x = -15, -16 II. 5y2 + 60y + 135 = 0 ⇒ 5y2 + 45y + 15y + 135 = 0 ⇒ 5y (y + 9) + 15 (y + 9) = 0 ⇒ (y + 9) (5y + 15) = 0 ⇒ y = -9, -3
∴ x < y |
||||||||||||||||