Mathematics [NSTSE (National Science Talent Search Exam Unified Council) Class 9]: Questions 778  784 of 989
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Question number: 778
» Mathematics » Surface Areas & Volumes
Question
The ratio of the volume and surface area of a sphere of unit radius
Choices
Choice (4)  Response  

a.  1: 3  
b.  3: 4  
c.  3: 1  
d.  4: 3 
Question number: 779
» Mathematics » Number Systems
Question
The values of x are such that . Then which of the following interval is true?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 780
» Mathematics » Number Systems
Question
The number is
Choices
Choice (4)  Response  

a.  Irrational  
b.  Rational  
c.  Question does not provide sufficient data or is vague  
d.  None of the above 
Question number: 781
» Mathematics » Number Systems
Question
The greatest among the following is
I.
II.
III.
IV.
Choices
Choice (4)  Response  

a.  III  
b.  II  
c.  IV  
d.  I 
Question number: 782
» Mathematics » Constructions
Question
Two chimneys 49 m and 29 m high stand upright in a ground. If their feet are 21 m apart, then the distance between their tops is
Choices
Choice (4)  Response  

a.  29 m  
b.  61 m  
c.  20 m  
d.  59 m 
Question number: 783
» Mathematics » Surface Areas & Volumes
Question
A cylindrical vessel of diameter 9 cm has some water in it. A cylindrical iron piece of diameter 6 cm and height 4.5 cm is dropped in it. After it was completely immersed, the raise in the level of water is ________.
Choices
Choice (4)  Response  

a.  0.8 cm  
b.  0.5 cm  
c.  2 cm  
d.  All of the above 
Question number: 784
» Mathematics » Surface Areas & Volumes
Question
If the radii of the circular ends of a conical bucket are 17 cm and 6 cm and the height is 21 cm. The capacity of the bucket is ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
