Quadratic Equations (IMO Mathematics Olympiad Class 10): Questions 31  36 of 80
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Question number: 31
» Quadratic Equations
Question
A convex polygon has 20 diagonals. The number of its sides is ________
Choices
Choice (4)  Response  

a.  9  
b.  8  
c.  7  
d.  12 
Question number: 32
» Quadratic Equations
Question
Which of the statements given below is correct. If discriminant for equation is D________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 33
» Quadratic Equations
Question
The roots of are real and unreal, if is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 34
» Quadratic Equations
Question
A man walks a distance of 50 km in a given time. If he walks 5 km/hr faster, he will perform the journey 5 hrs before. His normal rate of walking, is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 35
» Quadratic Equations
Question
Two numbers whose sum is 6 and absolute value of whose difference is 8 are the roots of the equation ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 36
» Quadratic Equations
Question
The expression is divisible by . Then m is a divisor of ________
Choices
Choice (4)  Response  

a.  20  
b.  4  
c.  16  
d.  12 