# Number System (IMO- Mathematics Olympiad (SOF) Class 7): Questions 17 - 22 of 81

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1012 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: 17

» Number System

MCQ▾

### Question

Which of the following number is not prime?

### Choices

Choice (4) Response

a.

4

b.

3

c.

2

d.

5

## Question number: 18

» Number System

MCQ▾

### Question

A tank contains 1000 liters of water. Due to a small hole in the tank, the quantity of water is decreasing at the rate of 10 liters every hour. What will be the quantity of the water in the tank after 20 hours?

### Choices

Choice (4) Response

a.

210 liters

b.

900 liters

c.

800 liters

d.

490 liters

## Question number: 19

» Number System

MCQ▾

### Question

If P: When two negative integers are added we always get a negative integer.

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

### Choices

Choice (4) Response

a.

P is false and q is true

b.

P and q are false

c.

P and q are true

d.

P is true and q is false

## Question number: 20

» Number System

MCQ▾

### Question

Which of the following number sentence below best describes the problem shown on the number line?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 21

» Number System

MCQ▾

### Question

The value of is ________.

### Choices

Choice (4) Response

a.

b.

240

c.

0

d.

144

## Question number: 22

» Number System

MCQ▾

### Question

Which of the following number sentence below best describes the problem shown on the number line?

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page