# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 23 - 29 of 1022

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## Question 23

### Question

MCQ▾

The average of the two middle rational numbers if are arranged in descending order is________.

### Choices

Choice (4)Response

a.

6

b.

1

c.

4

d.

5

## Question 24

### Question

MCQ▾

If p: When a positive integer and a negative integer are added we always get a negative integer.

q: When two negative integers are added, we get a positive integer, then

### Choices

Choice (4)Response

a.

P and q are true

b.

P and q are false

c.

p is false and q is true

d.

P is true and q is false

## Question 25

### Question

MCQ▾

Which integer is the additive inverse of itself?

### Choices

Choice (4)Response

a.

1

b.

0

c.

2

d.

3

## Question 26

### Question

MCQ▾

The value of , where is absolute value of an integer is________.

### Choices

Choice (4)Response

a.

2

b.

0

c.

3

d.

1

## Question 27

### Question

MCQ▾

Which pair of numbers does not have a product equal to 45?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 28

### Question

MCQ▾

A tank contains 500 liters of water. Due to a small hole in the tank, the quantity of water is decreasing at the rate of 9 liters every hour. What will be the quantity of the water in the tank after 10 hours?

### Choices

Choice (4)Response

a.

491 liters

b.

400 liters

c.

410 liters

d.

90 liters

## Question 29

### Question

MCQ▾

For any two rational numbers x and y which of the following are correct, if x is positive and y is negative?

1. X < Y 2. X = Y 3. X > Y

### Choices

Choice (4)Response

a.

Only 1 and 2 are correct

b.

Only 3 is correct

c.

Only 2 and 3 are correct

d.

Question does not provide sufficient data or is vague