Quadratic Equations for SBI PO/Clerk 2018: 01 May

Directions (Q. 1-10): In each of these questions, two equations (I) and (II) are given. You have to solve both the equations and give answer

1) if x ≥ y                               2) if x ≤ y

3) if x < y                               4) if x > y

5) if x = y, or relationship between x and y can’t be established.

1. I. x²+ 6x – 112 = 0          II. y² – 11y + 30 = 0

2. I. x²– 20x – 96 = 0         II. y³ = √21952

3. I. 4x + 8y = 8                    II. 6x + 4y = 42

4. I. 6x²– 41x – 30 = 0       II. 5y² – 40y – 45 = 0

5. I. 4x²– 14x + 12 = 0        II. 6y² – 20y + 16 = 0

6. I. 7x²– 33x + 20 = 0       II. 7y² + 9y – 10 = 0

7. I. 7x + 3y = 8                    II. 3x + 2y = 12

8. I. x²= 289                        II. y = ³√2197

9. I. 8x²– 11x + 3 = 0         II. y² – 8y + 7 = 0

10. I. x = √1089                   II. y² + y – 756 = 0

Answers:

1. 5
2. 3
3. 4
4. 5
5. 5
6. 1
7. 3
8. 5
9. 2
10. 4