Pair of Linear Equations in Two Variables Test

Result

Pair of Linear Equations in Two Variables Test - 4

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Weekly Quiz Competition

Question 1
1 / -0

If a pair of linear equations has infinitely many solutions, then the lines representing them will be

A
parallel

B
intersecting or coincident

C
always intersecting

D
always coincident
Question 2
1 / -0

If the lines given by 3 x + 2 ky = 2 and 2x + 5y + 1 = 0 are parallel, then value of k is

A
-5/4

B
2/5

C
15/4

D
3/2
Question 3
1 / -0

If am ≠ bl, then the system of equations, ax + by = c, lx + my = n

A
has a unique solutio

B
has no solution

C
has infinitely many solutions.

D
may or may not have a solution
Question 4
1 / -0

If x = a, y = b is the solution of the equations x – y = 2 and x + y = 4, then the values of a and b are, respectively

A
3 and 5

B
5 and 3

C
3 and 1

D
–1 and –3
Question 5
1 / -0

The father’s age is six times his son’s age. Four years hence, the age of the father will be four times his son. The present ages (in years) of the son and the father are, respectively.

A
4 and 24

B
5 and 30

C
6 and 36

D
3 and 24
Question 6
1 / -0

The pair of equations 5 x – 15y = 8 and 3x – 9 y = 24/5 has

A
one solution

B
two solutions

C
infinite solutions

D
no solution
Question 7
1 / -0

The sum of the digits of a two-digit number is 9. If 27 is added to it, the digit of number get reversed. The number is

A
25

B
72

C
63

D
36
Question 8
1 / -0

The value of k for which the system of equations 2x + ky x + 3y – 4 = 0 are inconsistent is

A
21/4

B
1/6

C
6

D
4/21
Question 9
1 / -0

The pair of equations x = a and y = b graphically represents lines which are

A
parallel

B
intersecting at (b,a)

C
coincident

D
intersecting at (a,b)
Question 10
1 / -0

The pair of equations y = 0 and y = –7 has

A
one solution

B
two solutions

C
infinitely many solutions

D
no solution

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Re-Attempt Weekly Quiz Competition

Pair of Linear Equations in Two Variables Test - 4

Result

Pair of Linear Equations in Two Variables Test - 4

Score

-

Rank

-

SHARING IS CARING

Question 1

parallel

intersecting or coincident

always intersecting

always coincident

Question 2

-5/4

2/5

15/4

3/2

Question 3

has a unique solutio

has no solution

has infinitely many solutions.

may or may not have a solution

Question 4

3 and 5

5 and 3

3 and 1

–1 and –3

Question 5

4 and 24

5 and 30

6 and 36

3 and 24

Question 6

one solution

two solutions

infinite solutions

no solution

Question 7

25

72

63

36

Question 8

21/4

1/6

6

4/21

Question 9

parallel

intersecting at (b,a)

coincident

intersecting at (a,b)

Question 10

one solution

two solutions

infinitely many solutions

no solution

User

Question Analysis

My Perfomance

Score

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Rank

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