Quadratic Equations (IMO Mathematics Olympiad Class 10): Questions 18  24 of 80
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Question number: 18
» Quadratic Equations
Question
If one roots of is twice the other root, then the value of ‘a’ is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 19
» Quadratic Equations
Question
Sum of two numbers x and y is 12 and the absolute value of their difference is 20 the equation with these numbers as roots is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 20
» 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: 21
» Quadratic Equations
Question
If one roots of is 3 times the other; the value of p is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 22
» Quadratic Equations
Question
A convex polygon has 77 diagonals. The number of its sides is ________
Choices
Choice (4)  Response  

a.  11 

b.  14 

c.  8 

d.  3 

Question number: 23
» Quadratic Equations
Question
The square of a number is decreased by 24. This value is twice the original number. Then the number is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 24
» Quadratic Equations
Question
In the equation , the sum of the roots is 3 and the product of the roots is 25. Then h and k respectively, have the values ________
Choices
Choice (4)  Response  

a.  9 and 5 

b.  9 and 5 

c.  9 and 5 

d.  9 and 5 
