Mathematics [NSTSE (National Science Talent Search Exam Unified Council) Class 9]: Questions 663  669 of 989
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Question 663
Question
MCQ▾The point (2,5) belongs to Quadrant ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question 664
Question
MCQ▾If the angles of a triangle are in the ratio 1: 2: 7 then the triangle is
Choices
Choice (4)  Response  

a.  Right angled isosceles  
b.  Right angled  
c.  Obtuse angled  
d.  Acute angled 
Question 665
Question
MCQ▾Which of the following statement (s) is true?
Choices
Choice (4)  Response  

a.  , where a and b are rational numbers  
b.  Infinite number of rational numbers lie between any two rational number  
c.  if where ‘a’ is a rational number  
d.  All a. , b. and c. are correct 
Question 666
Question
MCQ▾The triangle formed by and is
Choices
Choice (4)  Response  

a.  An obtuse angle triangle  
b.  An acute angle triangle  
c.  A right angled triangle  
d.  All of the above 
Question 667
Question
MCQ▾The mean of 10 observations is 15.8. By error, one observation was noted as 12 instead of 12. Then the correct mean is
Choices
Choice (4)  Response  

a.  25.8  
b.  18.2  
c.  18.5  
d.  5.8 
Question 668
Question
MCQ▾In a , if , then the right angle is at
Choices
Choice (4)  Response  

a.  A  
b.  C  
c.  B  
d.  None of the above 
Question 669
Question
MCQ▾The equation of the line parallel to xaxis is ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
