# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 75 - 88 of 931

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## Question 75

Edit

### Question

MCQ▾

If both ‘a’ and ‘b’ are rational numbers, then ‘a’ and ‘b’ from , are ________.

### Choices

Choice (4)Response
a.
b.
c.
d.

## Question 76

Edit

### Question

MCQ▾

The rationalizing factor of is ________.

### Choices

Choice (4)Response
a.
b.
c.
d.

## Question 77

Edit

### Question

MCQ▾

If then the value of

### Choices

Choice (4)Response
a.5
b.2
c.11
d.20

## Question 78

Edit

### Question

MCQ▾

If , then N equals________.

### Choices

Choice (4)Response
a.
b.0.78
c.
d.

## Question 79

Edit

### Question

MCQ▾

Find the values of a and b if

### Choices

Choice (4)Response
a.
b.
c.
d.

## Question 80

Edit

### Question

MCQ▾

If , then ________.

### Choices

Choice (4)Response
a.
b.
c.
d.

## Question 81

Edit

### Question

MCQ▾

can be expressed in rational form as ________.

### Choices

Choice (4)Response
a.
b.
c.
d.

## Question 82

Edit

### Question

MCQ▾

If, then the value of x is________.

### Choices

Choice (4)Response
a.2
b.4
c.1
d.7

## Question 83

Edit

### Question

MCQ▾

If, then is ________.

### Choices

Choice (4)Response
a.1
b.4
c.2
d.3

## Question 84

Edit

### Question

MCQ▾

If , find the value of

### Choices

Choice (4)Response
a.3
b.0
c.4
d.5

## Question 85

Edit

### Question

MCQ▾

If , then p is________.

### Choices

Choice (4)Response
a.77
b.78
c.65
d.86

## Question 86

Edit

### Question

MCQ▾

The value of of is ________.

### Choices

Choice (4)Response
a.
b.
c.
d.

## Question 87

Edit

MCQ▾

Solve for p if

### Choices

Choice (4)Response
a.
b.-1
c.
d.-2

## Question 88

Edit

MCQ▾

If find

### Choices

Choice (4)Response
a.62,488
b.60,480
c.480,60
d.488,62