Number System (IMO Level 1 Mathematics Olympiad (SOF) Class 7): Questions 1  9 of 82
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Question number: 1
» Number System
Question
The average of the two middle rational numbers if are arranged in descending order is________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 2
» Number System
Question
Which integer is the additive inverse of 5?
Choices
Choice (4)  Response  

a. 


b.  5 

c.  1 

d.  0 

Question number: 3
» Number System
Question
Which integer is the additive inverse of 1?
Choices
Choice (4)  Response  

a. 


b.  3 

c.  0 

d.  1 

Question number: 4
» Number System
Question
Which pair of numbers does not have a product equal to 36?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 5
» Number System
Question
Which of the following number is prime?
Choices
Choice (4)  Response  

a.  179 

b.  187 

c.  119 

d.  247 

Question number: 6
» Number System
Question
The value of is ________.
Choices
Choice (4)  Response  

a.  240 

b.  0 

c.  120 

d. 


Question number: 7
» Number System
Question
The value of , where is absolute value of an integer is________.
Choices
Choice (4)  Response  

a.  1 

b.  0 

c.  2 

d.  3 

Question number: 8
» Number System
Question
The value of , where is absolute value of an integer is________.
Choices
Choice (4)  Response  

a.  1 

b.  0 

c.  3 

d.  2 

Question number: 9
» Number System
Question
Which of the following is an irrational number?
Choices
Choice (4)  Response  

a. 


b. 


c.  1.50 

d.  2 
