IMO Level 1 Mathematics Olympiad (SOF) Class 7: Questions 103  109 of 1022
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Question number: 103
Question
Which of the following statement is correct?
Choices
Choice (4)  Response  

a.  The additive inverse of 0 is zero itself. 

b.  0 is called the additive identity for rational numbers 

c.  1 is called the multiplicative identity for rational numbers 

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

Question number: 104
Question
Express the value of in its simplest form.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 105
Question
If of then the value of x is
Choices
Choice (4)  Response  

a.  12.5 

b.  10.5 

c.  8.5 

d.  13.5 

Question number: 106
Question
The value of ………. is _.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 107
Question
If of , then the value of x is_.
Choices
Choice (4)  Response  

a.  80 

b.  20 

c.  10 

d.  None of the above 

Question number: 108
Question
If, Find the value of a, b and c respectively.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 109
Question
How many more squares in the figure must be shaded so that the fraction of shaded squares is ?
Choices
Choice (4)  Response  

a.  10 

b.  20 

c.  5 

d.  15 
