Linear Equations in Two Variables (IMO- Mathematics Olympiad Class 9): Questions 19 - 24 of 42

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Question number: 19

» Linear Equations in Two Variables

MCQ▾

Question

The option which is not a solution of the equation 7x+2y=14 , is________.

Choices

Choice (4) Response

a.

(0, 7)

b.

(4, -7)

c.

(5, 3)

d.

(2, 0)

Question number: 20

» Linear Equations in Two Variables

MCQ▾

Question

The number of values of k for which the system of equations x+y=5 , kx+y=9, x+ky=15 has the solutions?

Choices

Choice (4) Response

a.

k=165ork=1

b.

k=195ork=1

c.

k=105ork=1

d.

k=115ork=1

Question number: 21

» Linear Equations in Two Variables

MCQ▾

Question

Which of the following pairs of equations have the same solution

Choices

Choice (4) Response

a.

6x=3and3x=1.5

b.

8x=3and4x=1

c.

10x=9and5x=18

d.

12x=6and6x=6

Question number: 22

» Linear Equations in Two Variables

MCQ▾

Question

The number of values of k for which the system of equations x+y=8 , kx+y=15, x+ky=21 has the solutions is________

Choices

Choice (4) Response

a.

k=12 and k=2

b.

k=72 and k=1

c.

k=32 and k=2

d.

k=52 and k=1

Question number: 23

» Linear Equations in Two Variables

MCQ▾

Question

If the point (2, 5) lies on the graph of the equation 9y=ax+13 , then the value of a is________.

Choices

Choice (4) Response

a.

17

b.

14

c.

15

d.

16

Question number: 24

» Linear Equations in Two Variables

MCQ▾

Question

ax+by+c=0 does not represent equation of line if________.

Choices

Choice (4) Response

a.

b=c=0,a0

b.

c=0,a0,b0

c.

a=c=0,b0

d.

a=b=0

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