# Number System (IMO- Mathematics Olympiad (SOF) Class 9): Questions 97 - 103 of 103

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## Question number: 97

» Number System

MCQ▾

### Question

If , then the value of x is ________.

### Choices

Choice (4) Response

a.

6

b.

4

c.

5

d.

2

## Question number: 98

» Number System

MCQ▾

### Question

If and , then is________.

### Choices

Choice (4) Response

a.

322

b.

97

c.

81

d.

2

## Question number: 99

» Number System

MCQ▾

### Question

The last digit of the value of the number is________.

### Choices

Choice (4) Response

a.

2

b.

7

c.

8

d.

5

## Question number: 100

» Number System

MCQ▾

### Question

If , find the value of

### Choices

Choice (4) Response

a.

2702

b.

2723

c.

2700

d.

2722

## Question number: 101

» Number System

MCQ▾

### Question

If the product of two surds is a rational number, then each one of them is called the ________ of the other________

### Choices

Choice (4) Response

a.

Negative

b.

Rationalizing factor

c.

Conjugate surd

d.

Binomial surd

## Question number: 102

» Number System

MCQ▾

### Question

Find the value of

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 103

» Number System

MCQ▾

### Question

If and x and y are positive integers, then y could be which of the following?

### Choices

Choice (4) Response

a.

3

b.

5

c.

4

d.

2

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