IMO Mathematics Olympiad Class 10: Questions 254  260 of 908
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Question number: 254
Question
If has roots which are numerically equal but of opposite signs, then the value of ‘m’ must be ________
Choices
Choice (4)  Response  

a.  0 

b. 


c. 


d.  1 

Question number: 255
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: 256
Question
The expression is divisible by . Then m is a divisor of ________
Choices
Choice (4)  Response  

a.  12 

b.  10 

c.  10 

d.  12 

Question number: 257
Question
If the equation has equal roots, and then the both roots are equal to ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  ±5 

Question number: 258
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: 259
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: 260
Question
Which of the statements given below is correct. If discriminant for equation is D________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

