# Quadratic Equations (IMO- Mathematics Olympiad (SOF) Class 10): Questions 43 - 50 of 80

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 958 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 450.00 or

## Question number: 43

MCQ▾

### Question

Which of the statements given below is correct. If discriminant for equation is D________

### Choices

Choice (4) Response

a.

b.

Not determined

c.

d.

## Question number: 44

MCQ▾

### Question

If , then is equal to ________

### Choices

Choice (4) Response

a.

5

b.

c.

0

d.

## Question number: 45

MCQ▾

### Question

Which of the statements given below is correct. If discriminant for equation is D________

### Choices

Choice (4) Response

a.

b.

c.

d.

D is not defined

## Question number: 46

MCQ▾

### Question

The expression is divisible by. Then m is a divisor of ________

### Choices

Choice (4) Response

a.

54

b.

20

c.

45

d.

40

## Question number: 47

MCQ▾

### Question

The positive value of k for which the equations and will both have real roots, is ________

### Choices

Choice (4) Response

a.

8

b.

4

c.

16

d.

12

## Question number: 48

MCQ▾

### Question

Solve the equation by using quadratic formula, then x is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 49

MCQ▾

### Question

If one roots of is twice the other root, then the value of ‘a’ is ________

### Choices

Choice (4) Response

a.

-15

b.

15

c.

20

d.

-20

## Question number: 50

MCQ▾

### Question

A convex polygon has 44 diagonals. The number of its sides is ________

### Choices

Choice (4) Response

a.

13

b.

10

c.

11

d.

12

f Page