IMO Mathematics Olympiad Class 9: Questions 806  812 of 919
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Question number: 806
» Analytical Reasoning and Logical Reasoning
Question
Which number will replace the question mark?
Choices
Choice (4)  Response  

a.  30  
b.  26  
c.  22  
d.  24 
Question number: 807
Question
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 808
Question
The average of 9 numbers is 8. What should be added as 10^{th} number to make the average 9?
Choices
Choice (4)  Response  

a.  10  
b.  72  
c.  90  
d.  18 
Question number: 809
» Introduction to Euclid's Geometry
Question
Two distinct ________ in a plane cannot have more than one point in common
Choices
Choice (4)  Response  

a.  Lines and points  
b.  Lines  
c.  Points  
d.  Question does not provide sufficient data or is vague 
Question number: 810
» Linear Equations in Two Variables
Question
The equation has________
Choices
Choice (4)  Response  

a.  Only two solutions  
b.  Only three solutions  
c.  Only one solution  
d.  Infinitely many solutions 
Question number: 811
» Analytical Reasoning and Logical Reasoning
Question
Which number should come in place of the question mark?
14

18

12

5

3

5

5

7

?

75

61

69 
Choices
Choice (4)  Response  

a.  7  
b.  4  
c.  9  
d.  6 
Question number: 812
» Introduction to Euclid's Geometry
Question
In the figure , and , if , what is the length of ?
Choices
Choice (4)  Response  

a.  6  
b.  5  
c.  3  
d.  4 