EASY

10th CBSE

IMPORTANT

Earn 100

Which of these is a QUADRATIC equation having one of its roots as zero $?$

$i) x^{3} + x^{2} = 0$

$i i) x^{2} - 2 x = 0$

$i i i) x^{2} - 9 = 0$

100% studentsanswered this correctly

Important Questions on Quadratic Equations

MEDIUM

10th CBSE

IMPORTANT

Mathematics Textbook of Competency Based Questions for Class X>Chapter 4 - Quadratic Equations>Exercise>Q 36

Which of the following is not a method of solving a quadratic equation?

HARD

10th CBSE

IMPORTANT

Mathematics Textbook of Competency Based Questions for Class X>Chapter 4 - Quadratic Equations>Exercise>Q 37

The size of a screen is an important factor in designing a web page. The page can be opened on different screen sizes but during the initial designing stage, one screen area is considered as the safe area. The content in the safe area can be viewed without horizontal and vertical scrolling of the web page. The safe area of a web page is

40

pixels less than the width and

190

pixels less than the height of the display screen.

Which of the following expression represents the safe area for the screen whose screen height is

200

pixels less than the screen width (

w

MEDIUM

10th CBSE

IMPORTANT

Mathematics Textbook of Competency Based Questions for Class X>Chapter 4 - Quadratic Equations>Exercise>Q 39

What is the significance of the coefficients of a quadratic equation?

HARD

10th CBSE

IMPORTANT

Mathematics Textbook of Competency Based Questions for Class X>Chapter 4 - Quadratic Equations>Exercise>Q 41

A train will have to reach its destination at a distance of

300 km

in a fixed time and with a fixed velocity. But it is seen just before start that for the disturbance of the engine the train will have to maintain its speed

5 km / hour

less. For this it reaches the destination

2 hours

late. What was the stipulated speed of the train in

\frac{km}{hour}

HARD

10th CBSE

IMPORTANT

Mathematics Textbook of Competency Based Questions for Class X>Chapter 4 - Quadratic Equations>Exercise>Q 42

The side of one square is

3 cm

longer than twice the side of the second square. The difference in their areas is

144 sq . cm

. Find the sides of the two squares.

HARD

10th CBSE

IMPORTANT

Mathematics Textbook of Competency Based Questions for Class X>Chapter 4 - Quadratic Equations>Exercise>Q 43

A car covers a distance of $400 k m$ at a certain speed. Had the speed been $12 k m / h$ more, the time taken for the journey would have been $1 h 40 m i n$ less. Find the original speed of the car in $k m / h r$ .

HARD

10th CBSE

IMPORTANT

Mathematics Textbook of Competency Based Questions for Class X>Chapter 4 - Quadratic Equations>Exercise>Q 44

Solve the equation by factorisation: ${(a + b)}^{2} x^{2} - 4 a b x - {(a - b)}^{2} = 0$ .

MEDIUM

10th CBSE

IMPORTANT

Mathematics Textbook of Competency Based Questions for Class X>Chapter 4 - Quadratic Equations>Exercise>Q 46

The number of polynomials having zeroes as

- 2

and

5

Which of these is a QUADRATIC equation having one of its roots as zero? i) x3+x2=0 ii) x2-2x=0 iii) x2-9=0

Important Questions on Quadratic Equations

Learn and Prepare for any exam you want !

Which of these is a QUADRATIC equation having one of its roots as zero $?$

$i) x^{3} + x^{2} = 0$

$i i) x^{2} - 2 x = 0$

$i i i) x^{2} - 9 = 0$