IMO Mathematics Olympiad Class 8: Questions 45  51 of 1029
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Question number: 45
Question
What should be subtracted from to get ?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 46
Question
The sum of the additive inverse and multiplicative inverse of 3 is_.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 47
Question
Name the property of multiplication of rational numbers illustrated by the given statement.
Choices
Choice (4)  Response  

a.  Distrbutivity of addition over multiplication 

b.  Associativity of multiplication 

c.  Commutativity 

d.  Distributivity of multiplication over addition 

Question number: 48
Question
The value of for which the two rational numbers , are equivalent, is_.
Choices
Choice (4)  Response  

a.  13 

b.  30 

c.  5 

d.  31 

Question number: 49
Question
A rational number between and is
Choices
Choice (4)  Response  

a.  0.45 

b.  0.49 

c.  0.34 

d.  All a. , b. and c. are correct 

Question number: 50
Question
The product of two rational numbers is 20. If one of the number is 12, find the other?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 51
Question
What should be added to to get
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

