NSTSE (National Science Talent Search Exam Unified Council) Class 10: Questions 686  692 of 1484
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Question number: 686
» Mathematics » Coordinate Geometry
Question
The point on Xaxis equidistant from and is ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  None of the above 
Question number: 687
Question
The angle of elevation of the top of an unfinished tower at a point of distance 60 m from its base is . How much height must the tower be raised so that the angle of elevation be ?
Choices
Choice (4)  Response  

a.  m  
b.  m  
c.  m  
d.  All of the above 
Question number: 688
» Mathematics » Coordinate Geometry
Question
The points form the vertices of
Choices
Choice (4)  Response  

a.  Equilateral triangle  
b.  Right angled triangle  
c.  Isosceles right angled triangle  
d.  Isosceles triangle 
Question number: 689
» Mathematics » Quadratic Equations
Question
If is a positive integer and the roots of the equation are rational numbers, then the smallest value of is:
Choices
Choice (4)  Response  

a.  1  
b.  5  
c.  3  
d.  4 
Question number: 690
Question
The probability for a randomly selected number out of 11,12,13,14, …. , 50 to be a prime number is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 691
Question
The value of = ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c.  1  
d.  Question does not provide sufficient data or is vague 
Question number: 692
Question
The probability for a leap year to have 53 Sundays is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
