Free Printable Class X Quiz

1.

Every quadratic polynomial can have at most

a)

one zero

b)

two zeroes

c)

three zeroes

d)

none of these

2.

For ax² + bx + c = 0, which of the following statement is wrong?

a)

If b² – 4ac is a perfect square, the roots are rational.

b)

If b² = 4ac , the roots are real and equal.

c)

If b² – 4ac is negative, no real roots exist.

d)

If b² = 4ac , the roots are real and unequal.

3.

Which of the following is not a quadratic equation?

a)

$3x^2\ -\ 5x\ -\ 9\ =0$

b)

$x\ +\frac{1}{x}=1$

c)

$x^2\ -\ 9x\ =\ 0$

d)

$x^3\ -2x\ -\ \sqrt{5}\ =\ 0$

4.

Value of D when root of ax² + bx + c = 0 are real and unequal will be

a)

D ≥ 0

b)

D > 0

c)

D < 0

d)

D = 0

5.

Roots of quadratic equation x² – 3x = 0 , will be

a)

3

b)

0, -3

c)

0,3

d)

none of these

6.

$If\ px^2\ +\ qx\ +\ r\ =0\ has\ \ \ equal\ roots,\ \ value\ \ \ of\ \ r\ \ will\ \ be$

a)

$\frac{q^2}{4p}$

b)

$\frac{-q^2}{4p}$

c)

$\frac{4p}{q^2}$

d)

none of these

7.

If the equation x² – kx + 1, have no real roots, then

a)

–2 < k < 2

b)

–3 < k < 3

c)

k > 2

d)

k < –2

8.

Positive value of p for which equation x² + px + 64 = 0 and x² – 8x + p = 0 will both have real roots will be

a)

p ≥ 16

b)

p ≤ 16

c)

p = 16

d)

none of these

9.

For what value of t is x = 2/3 a solution of 7x² + tx – 3 = 0

a)

-6

b)

-1/6

c)

1/6

d)

6

10.

The roots of the equation 9x² – bx + 81 = 0 will be equal, if the value of b is

a)

± 9

b)

± 18

c)

± 27

d)

± 54

Class X Quiz

Total questions: 10

Worksheet time: 5mins

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