Mathematics [NSTSE (National Science Talent Search Exam Unified Council) Class 9]: Questions 410  416 of 989
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Question number: 410
» Mathematics » Constructions
Question
The number of independent measurements required to construct a triangle is
Choices
Choice (4)  Response  

a.  5  
b.  3  
c.  2  
d.  4 
Question number: 411
» Mathematics » Constructions
Question
If the two sides of a right angled triangle are equal and the square of the hypotenuse is 162 cm then the length of each side is
Choices
Choice (4)  Response  

a.  cm  
b.  18 cm  
c.  3 cm  
d.  9 cm 
Question number: 412
» Mathematics » Surface Areas & Volumes
Question
The diameter of a copper sphere is 36 cm. It is beaten and drawn into a wire of diameter 0.6 cm. The length of wire is ________.
Choices
Choice (4)  Response  

a.  21600 cm  
b.  43200 cm  
c.  32400 cm  
d.  86400 cm 
Question number: 413
» Mathematics » Polynomials
Question
The product of and is:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  None of the above 
Question number: 414
» Mathematics » Surface Areas & Volumes
Question
A hollow spherical ball whose inner radius is 2 cm is full of water. Half of the water is transferred to a conical cup and it completely filled the cup. If the height of the cup is 4 cm, then the radius of the base of cone, in cm is
Choices
Choice (4)  Response  

a.  4  
b.  16  
c.  2  
d. 

Question number: 415
» Mathematics » Statistics
Question
The mean of 7 observations is 58. If one observation, namely 4 is deleted, the new mean is
Choices
Choice (4)  Response  

a.  61  
b.  62  
c.  65  
d.  67 
Question number: 416
» Mathematics » Statistics
Question
The runs scored by Sachin in 7 test matches are 133,140,138,150,156,148 and 143 respectively. Find his mean.
Choices
Choice (4)  Response  

a.  144  
b.  133  
c.  156  
d.  148 