IMO Level 1 Mathematics Olympiad (SOF) Class 10: Questions 273  279 of 968
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Question number: 273
Question
The roots of are real and unreal, if is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 274
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: 275
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: 276
Question
The expression is divisible by. Then m is a divisor of ________
Choices
Choice (4)  Response  

a.  20 

b.  12 

c.  16 

d.  4 

Question number: 277
Question
The roots of the equation can be found by solving ________
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Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 278
Question
Solve the equation by using quadratic formula, then x is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 279
Question
In the equation, the sum of the roots is 4 and the product of the roots is. Then h and k respectively, have the values ________
Choices
Choice (4)  Response  

a.  4 and 3 

b.  8 and 3 

c.  8 and 6 

d.  3 and 8 
