IMO Mathematics Olympiad Class 8: Questions 687  693 of 1029
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Question number: 687
Question
If , where A and B are single digit number such that , then the values of A and B are________.
Choices
Choice (4)  Response  

a.  4, 5  
b.  5, 4  
c.  6, 9  
d.  9, 6 
Question number: 688
Question
Euler’s formula for any polyhedron, where F is the number of faces, V stands for number of vertices and E stands for number of edges is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 689
Question
The least value must be given to x so that the number 3128x4 is divisible by 8 is________.
Choices
Choice (4)  Response  

a.  1  
b.  3  
c.  4  
d.  2 
Question number: 690
Question
To draw the graph of a line, the least number of points required is________.
Choices
Choice (4)  Response  

a.  Two  
b.  Three  
c.  Four  
d.  One 
Passage
Study the graph carefully and answer the questions given below it.
Question number: 691 (1 of 13 Based on Passage) Show Passage
Question
The increase in import in 1975 was what percent of the import in 1976?
Choices
Choice (4)  Response  

a.  21.00%  
b.  25.35%  
c.  20.30%  
d.  50% 
Question number: 692 (2 of 13 Based on Passage) Show Passage
Question
The import in 1972 is approximately what pecent of the average import for the given years?
Choices
Choice (4)  Response  

a.  45.71%  
b.  49.54%  
c.  44%  
d.  Question does not provide sufficient data or is vague 
Question number: 693 (3 of 13 Based on Passage) Show Passage
Question
The import in 1978 is approximately what pecent of the average import for the given years?
Choices
Choice (4)  Response  

a.  64.71%  
b.  55%  
c.  68.39%  
d.  None of the above 