IMO Mathematics Olympiad Class 10: Questions 280  284 of 908
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Question number: 280
Question
Find the value of ‘k’ if product of roots of is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 281
Question
If have a common root, then the value of ‘a’ is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  Only 1 

Question number: 282
Question
In the Maths Olympiad of 2020 at Animal Planet, two representatives from the donkey’s side, while solving a quadratic equation, committed the following mistakes:

One of them made a mistake in the constant term and got the roots as 5 and 9.

Another one committed an error in the coefficient of x and he got the roots as 12 and 4
But in the meantime, they realized that they are wrong and they managed to get it right jointly. Find the quadratic equation.
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Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 283
Question
Which of the statements given below is correct. If discriminant for equation is D________
Choices
Choice (4)  Response  

a. 


b.  Not determined 

c. 


d. 


Question number: 284
Question
If , then is equal to ________
Choices
Choice (4)  Response  

a.  5 

b. 


c.  0 

d. 

