Quadratic Equation

Quadratic Equation for Bank Exam

Quadratic Equation for Bank Exam: Quadratic Equation for bank exams are usually asked in  all competitive exams like IBPS Clerk, IBPS PO, SBI Clerk, SBI PO, RRB Clerk, RRB PO, LIC Assistant, LIC AAO, and other government exams. 
Quadratic Equation for Bank Exam are very easy to solve in very less time. On this page, we are providing all varieties of Quadratic Equation for Bank Exam along with previous year Quadratic Equation Questions.
Quadratic Equation Questions are usually based on fast calculation and can be easily solved . In Bank Exams like SBI Clerk/PO, IBPS Clerk/PO, RRB Clerk/PO, LIC, RBI ,there are almost 3-5 Quadratic Equation Questions.

In the following questions, two equations numbered I and II are given. You have to solve both the equations and Give Answer If

1.

  1. x2 + 25x + 156 =0
  2. y2+27y+182 =0

Ans:2
I. x2 + 25x + 156 =0X2 + 12x + 13x +156 =0

(x+12) (x+13) =0

x = -12, -13

II. y2+27y+182 =0

Y2 + 14y + 13y + 182 =0

(y+13) (y+14) =0

y =-13, -14

x ≥ y

2.

  1. 4x+2y =14
  2. 3x+6y =24

Ans:3
4x+2y =14 —– (1)
3x+6y =24 —– (2)
Solve the equation, we get x = 2 and y =3

3.

  1. x = ∛1728
  2. y = √(√20736)

Ans:5
I. x = ∛1728
x=12
II. y = √(√20736)
y= √144
y = 12
x=y

4.

  1. (x2 – 122) =0
  2. y = ∛2197

Ans:3
I. (x2 – 122) =0(x+12) (x-12) =0

x=12, -12

II. y = ∛2197

y =13

x < y

5.

  1. 4x+6y = 6
  2. 2x-3y =45

Ans:1
4x+6y = 6 —- (1)
2x-3y =45 —- (2)
Solve the equations, we get x = 12 and y = -7
x> y

Directions:6-10) In the following questions, two equations numbered I and II are given. You have to solve both questions and give answer among the following options.

6.

  1. 4x²-4x-48=0
  2. 6y²-6y-12=0

Ans:5
I.4x²-4x-48=0
4x²-16x+12x-48=0
X=4,-3
II.6y²-6y-12=0
6y²+6y-12y-12=0
Y=2,-1
Thus relationship can’t be established

7.

  1. 3x²+53x+204=0
  2. 5y²+31y+48=0

Ans:3
I.3x²+53x+204=0
3x²+36x+17x+204=0
X=-17/3 , -12
II.5y²+31y+48=0
5y²+15y+16y+48=0
Y=-16/5,-3
Thus y>x

8.

  1. 2x²-39x+124=0
  2. 2y²-30y+108=0

Ans:5
I.2x²-39x+124=0
2x²-8x-31x+124=0
X=31/2, 4
II.2y²-30y+108=0
2y²-12y-18y+108=0
Y=9 ,6
Thus relationship can’t be established.

9.

  1. 8x²-18x+9=0
  2. y²+11y-432=0

Ans:5
I.8x²-18x+9=0
8x²-12x-6x+9=0
X=3/4, 3/2
II.y²+11y-432=0
y²+27y-16y-432=0
y=16,-27
Thus relationship can’t be established

10.

  1. 2x²+15x+28=0
  2. 4y²+32y+64=0

Ans:2
I.2x²+15x+28=0
2x²+8x+7x+28=0
X=-7/2 ,-4
II.4y²+32y+64=0
4y²+16y+16y+64=0
Y=-4 ,-4
Thus, X≥Y

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