Free Printable 10 chp 1,2,4

1.

What is LCM of smallest prime number and the smallest composite number

a)

2

b)

4

c)

6

d)

8

2.

2+\sqrt{2}

is

a)

an integer

b)

a rational number

c)

an irrational number

d)

none of these

3.

The decimal expansion of the rational number $\frac{37}{2^2\times5}$ will terminate after

a)

one decimal place

b)

two decimal places

c)

three decimal places

d)

four decimal places

4.

The HCF of two numbers, 1261 and 1067 is 97. Find their LCM

a)

18222

b)

1212

c)

13871

d)

36470

5.

the values of x and y in the given figure are

a)

x = 10; y = 14

b)

x = 21; y = 84

c)

x = 25; y = 21

d)

x = 14; y = 40

6.

Which of the following is not graph of a quadratic polynomial?

a)

b)

c)

d)

7.

If one of the zero of 3x² + 8x + k be the reciprocal of the other, then the value of k is

a)

3

b)

-3

c)

$\frac{1}{3}$

d)

$\frac{-1}{3}$

8.

A quadratic polynomial whose zeros are $\frac{3}{5}$ and $\frac{-1}{2}$ , is

a)

$10x^2\ +\ x\ +\ 3$

b)

$10x^2\ +\ x\ -\ 3$

c)

$10x^2\ -\ x\ +\ 3$

d)

$x^2\ -\ \frac{1}{10}x\ -\ \frac{3}{10}$

9.

The polynomial which when divided by $-x^2+x\ -1$
gives a quotient x - 2 and remainder is 3, is

a)

$x^3\ -3x^2\ +\ 3x\ -5$

b)

$-x^3\ -3x^2\ -\ 3x\ -5$

c)

$-x^3\ +3x^2\ -\ 3x\ +5$

d)

$x^3\ -3x^2\ -\ 3x\ +5$

10.

If x = 3 is one of the root of the quadratic equation $x^2\ -\ 2kx\ -\ 6$ , then find value of k.

a)

$\frac{1}{3}$

b)

$\frac{1}{2}$

c)

$\frac{2}{5}$

d)

$\frac{1}{6}$

11.

If one of the zeros of quadratic polynomial (k-1)x² + kx + 1 is -3, then find value of k

a)

$\frac{3}{4}$

b)

$\frac{4}{3}$

c)

$\frac{2}{3}$

d)

$\frac{3}{2}$

12.

1) Find a quadratic polynomial, in which the sum of the zeros is $\sqrt{3}$ and the product of the zeros is 11 respectively

a)

$k\left(x^2\ -\ \sqrt{2}x\ +\ 11\ \right)$

b)

$k\left(x^2\ -\ \sqrt{11}x\ +\ 3\ \right)$

c)

$k\left(x^2\ -\ \sqrt{3}x\ +\ 11\ \right)$

d)

$k\left(x^2\ +\ \sqrt{2}x\ +\ 11\ \right)$

13.

Which of the following is quadratic equation?

a)

$x^2\ +\ 2x\ +\ 1=\ \left(4\ -\ x\right)^2\ +\ 3$

b)

$-2x^2\ =\ \left(5\ -\ x\right)\left(2x\ -\frac{2}{5}\right)$

c)

$\left(k+1\right)x^2\ +\ \frac{3}{2}x=\ 7,\$ where k = -1

d)

$x^3-x^2\ =\ \left(x-1\right)^3$

14.

which of the following has 2 as a root

a)

$x^2\ -\ 4x\ +\ 5$

b)

$x^2\ +\ 3x\ -\ 12\ =\ 0$

c)

$2x^2\ -\ 7x\ +\ 6\ =\ 0$

d)

$3x^2\ -\ 6x\ -\ 2\ =\ 0$

15.

The two consecutive odd positive integers, sum of whose squares is 290 are ..

a)

13, 15

b)

11,13

c)

7,9

d)

5,7

16.

$x^2\ -\ 0.09\ =\ 0\ is\$

Roots of the equation

a)

0.3

b)

0.03

c)

no root

d)

none of these

17.

if $\frac{1}{2}$ is root of the equation $x^2\ +kx\ -\ \frac{5}{4}=\ 0,\$ , then the value of k is ..

a)

2

b)

- 2

c)

$\frac{1}{4}$

d)

$\frac{1}{2}$

18.

If list price of a toy is reduced by Rs. 2, a person can buy 2 toys more for Rs. 360. The original price of a toy is ..

a)

Rs. 18

b)

Rs. 20

c)

Rs. 19

d)

Rs. 21

19.

If difference of roots of quadratic equation $x^2+kx\ +\ 12\ =\ 0$ is 1 , the positive value of k is...

a)

-7

b)

7

c)

4

d)

8

20.

The sum of squares of two consecutive odd numbers is 394. Find the numbers

a)

13 and 15 OR -13 and -15

b)

15 and 17 OR -15 and -17

c)

only 13 and 15

d)

-15 and -17

21.

Solve for x: $\frac{1}{x+1}+\frac{2}{x+2}=\ \frac{4}{x+4},\ x\ne-1,-2,-3$

a)

$3\pm2\sqrt{3}$

b)

$2\pm2\sqrt{3}$

c)

$5\pm2\sqrt{5}$

d)

$4\pm2\sqrt{3}$

22.

Use the graph to determine the solutions.

a)

-1 and -3

b)

1 and -3

c)

1 and 3

d)

-1 and 3

23.

The positive real root of the equation : 64x² - 1 = 0 is ______

a)

8

b)

⅛

c)

1⁄16

d)

1⁄4

10 chp 1,2,4

Total questions: 23

Worksheet time: 34mins

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