# Quadratic Equations (IMO- Mathematics Olympiad Class 10): Questions 18 - 23 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: 18

MCQ▾

### Question

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

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 19

MCQ▾

### Question

Sum of two numbers x and y is 12 and the absolute value of their difference is 20 the equation with these numbers as roots is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 20

MCQ▾

### Question

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

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 21

MCQ▾

### Question

If one roots of is 3 times the other; the value of p is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 22

MCQ▾

### Question

A convex polygon has 77 diagonals. The number of its sides is ________

### Choices

Choice (4) Response

a.

11

b.

14

c.

8

d.

3

## Question number: 23

MCQ▾

### Question

The square of a number is decreased by 24. This value is twice the original number. Then the number is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page