#### 11th Standard Maths English Medium Free Online Test Creative One Mark Questions with Answer Key

11th Standard

Reg.No. :
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Maths

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

10 x 1 = 10

(a)

A\B

(b)

A'

(c)

B'

(d)

B\A

2. The number of reflective relations one set containing n elements is:

(a)

212

(b)

24

(c)

216

(d)

28

3. $(\sqrt { 5 } -2)(\sqrt { 5 } +2)$ is equal to

(a)

1

(b)

3

(c)

23

(d)

21

4. If cosec x+cotx=$\frac { 11 }{ 2 }$ then tanx=

(a)

$\frac { 21 }{ 22 }$

(b)

$\frac { 15 }{ 16 }$

(c)

$\frac { 44 }{ 117 }$

(d)

$\frac { 117 }{ 44 }$

5. Among the players 5 are bowlers. In how many ways a team of 11 may be formed with atleast 4 bowlers?

(a)

265

(b)

263

(c)

264

(d)

275

6. If in an infinite G. P., first term is equal to 10 times the sum of all successive terms, then its common ratio is

(a)

$\frac { 1 }{ 10 }$

(b)

$\frac { 1 }{ 11 }$

(c)

$\frac { 1 }{ 9 }$

(d)

$\frac { 1 }{ 20 }$

7. If the points (2k,k)(k,2k) and (k,k)enclose a triangle of area 18 sq units, then the centroid of the triangle is

(a)

(8,8)

(b)

(4,4)

(c)

(3,3)

(d)

(2,2)

8. The locus of a point which is equidistant from (-1,1) and (4,2) is

(a)

5x+3y+9=0

(b)

5x+3y-9=0

(c)

3x-5y=0

(d)

3x+5y-9=0

9. On using elementary row operation R1⟶R1-3R2 in the following matrix equation $\begin{pmatrix} 4 & 2 \\ 3 & 3 \end{pmatrix}=\begin{pmatrix} 1 & 2 \\ 0 & 3 \end{pmatrix}\begin{pmatrix} 2 & 0 \\ 1 & 1 \end{pmatrix}$

(a)

$\begin{pmatrix} -5 & -7 \\ 3 & 3 \end{pmatrix}=\begin{pmatrix} 1 & -7 \\ 0 & 3 \end{pmatrix}\begin{pmatrix} 2 & 0 \\ 1 & 1 \end{pmatrix}$

(b)

$\begin{pmatrix} -5 & -7 \\ 3 & 3 \end{pmatrix}=\begin{pmatrix} 1 & 2 \\ 0 & 3 \end{pmatrix}\begin{pmatrix} -1 & -3 \\ 1 & 1 \end{pmatrix}$

(c)

$\begin{pmatrix} -5 & -7 \\ 3 & 3 \end{pmatrix}=\begin{pmatrix} 1 & 2 \\ 1 & -7 \end{pmatrix}\begin{pmatrix} 2 & 0 \\ 1 & 1 \end{pmatrix}$

(d)

$\begin{pmatrix} 4 & 2 \\ -5 & -7 \end{pmatrix}=\begin{pmatrix} 1 & 2 \\ -3 & -3 \end{pmatrix}\begin{pmatrix} 2 & 0 \\ 1 & 1 \end{pmatrix}$

10. Choose the correct statement

(a)

(b)

(c)

Matrix multiplication is associative

(d)

Matrix multiplication is commutative