# Rational Numbers (IMO- Mathematics Olympiad (SOF) Class 8): Questions 61 - 66 of 66

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1029 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: 61

» Rational Numbers

MCQ▾

Simplify,

### Choices

Choice (4) Response

a.

b.

c.

d.

1

## Question number: 62

» Rational Numbers

MCQ▾

### Question

A hoop is resting vertically at staircase as shown in the diagram. AB = 12 cm and BC = 6 cm. The radius of the hoop is________.

### Choices

Choice (4) Response

a.

11 cm

b.

10 cm

c.

15 cm

d.

12 cm

## Question number: 63

» Rational Numbers

Appeared in Year: 2012

MCQ▾

### Question

Which of the following expressions is true?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 64

» Rational Numbers

MCQ▾

### Question

Which of the following expressions is true?

### Choices

Choice (4) Response

a.

b.

c.

d.

Both b. and c. are correct

## Question number: 65

» Rational Numbers

MCQ▾

### Question

Which of the following is the property of the rational numbers?

### Choices

Choice (4) Response

a.

Associative

b.

Closure

c.

Commutative

d.

All a. , b. and c. are correct

## Question number: 66

» Rational Numbers

Appeared in Year: 2012

MCQ▾

### Question

Closure property for rational numbers is satisfied in case of ________.

### Choices

Choice (4) Response

a.

Subtraction

b.