#### 9th Standard Maths English Medium Free Online Test Book Back 1 Mark Questions with Answer Key Part - 2

9th Standard

Reg.No. :
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Maths

Time : 00:10:00 Hrs
Total Marks : 10

Part A

10 x 1 = 10
1. The set P = {x | x ∈ Z , –1 < x < 1} is a

(a)

Singleton set

(b)

Power set

(c)

Null set

(d)

Subset

2. An irrational number between 2 and 2.5 is

(a)

$\sqrt { 11 }$

(b)

$\sqrt { 5 }$

(c)

$\sqrt { 2.5 }$

(d)

$\sqrt { 8 }$

3. The zero of the polynomial 2x+5 is

(a)

$\frac {5}{2}$

(b)

$-\frac {5}{2}$

(c)

$\frac {2}{5}$

(d)

$-\frac {2}{5}$

4. The GCD of x4-y4 and x2-y2 is

(a)

x4-y4

(b)

x2-y2

(c)

(x+y)2

(d)

(x+y)4

5. The exterior angle of a triangle is equal to the sum of two

(a)

Exterior angles

(b)

Interior opposite angles

(c)

Alternate angles

(d)

Interior angles

6. If the y-coordinate of a point is zero, then the point always lies ______

(a)

(b)

(c)

on x-axis

(d)

on y-axis

7. For which set of numbers do the mean, median and mode all have the same values?

(a)

2,2,2,4

(b)

1,3,3,3,5

(c)

1,1,2,5,6

(d)

1,1,2,1,5

8. The value of cosec(700 + $\theta$) - sec(200 - $\theta$) + tan(650 + $\theta$) - cot(250 - $\theta$) is

(a)

0

(b)

1

(c)

2

(d)

3

9. If the ratio of the sides of two cubes are 2:3, then ratio of their surface areas will be

(a)

4 : 6

(b)

4 : 9

(c)

6 : 9

(d)

16 : 36

10. Which of the following cannot be taken as probability of an event?

(a)

0

(b)

0.5

(c)

1

(d)

-1