## Algebra For SBI PO : Set – 11

D.1-5) In each of these questions, two equation (I) and (II) are given. You have to solve both the equations

I.2−25=0

II.2−9+20=0

a) if x > y

b) if x ≥ y

c) if x < y

d) if x ≤ y

e) if x = y or no relation can be established between x and y

(e)

X2 – 25 = 0

X2 = 25

X = ± 5

Y2 – 9y + 20 = 0

Y = 4, 5

2)

a) if x > y

b) if x ≥ y

c) if x < y

d) if x ≤ y

e) if x = y or no relation can be established between x and y

(c)

X2 – 32 = 112

X2 = 144

X = +12, -12

Y – 256 = 0

Y = 256

3)

I. − 169=0

II. 2−169 =0

a) if x > y

b) if x ≥ y

c) if x < y

d) if x ≤ y

e) if x = y or no relation can be established between x and y

(a)

X – 169 = 0

X = 169

Y2 – 169 = 0

Y2 = 169

Y = +13, -13

4)

I. 42+13+10=0

II. 22+2-12=0

a) if x > y

b) if x ≥ y

c) if x < y

d) if x ≤ y

e) if x = y or no relation can be established between x and y

(e)

I.42+13+10=0

II.22+2-12=0

I.42+13+10=0

X = -1.25, -2

II.22+2-12=0

Y= -3,+2

No relationship between X and Y

5)

I. 3x2−12−15=0

II. 5y2+-6=0

a) if x > y

b) if x ≥ y

c) if x < y

d) if x ≤ y

e) if x = y or no relation can be established between x and y

(e)

I.32−12−15=0

II.52+-6=0

I.32−12−15=0

X= 5,-1

II.52+-6=0

Y=-1.2,+1

No relationship between X and Y

D.6-10) In each of these questions, two equations (I) and (II) are given. You have to solve both the equations and give answer

6)

I. 5x=7y+21

II. 11x+4y+109=0

a) if x < y

b) if x > y

c) if x ≤  y

d) if x≥ y

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

b)

7)

a) if x < y

b) if x > y

c) if x ≤  y

d) if x≥ y

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

b)

8)

I. 5x2=19x-12

II. 5y2+11y=12

a) if x < y

b) if x > y

c) if x ≤  y

d) if x≥ y

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

d)

9)

I. 6x2-49x+99=0

II. 5y2+17y+14=0

a) if x < y

b) if x > y

c) if x ≤  y

d) if x≥ y

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

b)

10)

I. 2x2-11x+12=0

II. 2y2-17y+36=0

a) if x < y

b) if x > y

c) if x ≤ y

d) if x≥ y

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