Mathematics [NSTSE (National Science Talent Search Exam Unified Council) Class 9]: Questions 608  614 of 989
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Question number: 608
Question
MCQ▾The diameter of a copper sphere is 14 cm. It is beaten and drawn into a wire of diameter 0.8 cm. The length of wire is ________.
Choices
Choice (4)  Response  

a.  4287.5 cm  
b.  2143.75 cm  
c.  2858.33 cm  
d.  1429.17 cm 
Question number: 609
Question
MCQ▾This property is
Choices
Choice (4)  Response  

a.  Closure  
b.  Associative  
c.  Identity  
d.  Commutative 
Question number: 610
Question
MCQ▾How many pieces of equal size can be cut from a rope of 60 meters long, each measuring meters?
Choices
Choice (4)  Response  

a.  16  
b.  13  
c.  4  
d.  8 
Question number: 611
Question
MCQ▾A hemispherical bowl is made of steel of 0.5 cm thickness. The inner radius of the bowl is 18 cm. The volume of steel used is ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 612
Question
MCQ▾The product of a rational number and its reciprocal is
Choices
Choice (4)  Response  

a.  0  
b.  1  
c.  1  
d.  All of the above 
Question number: 613
Question
MCQ▾The equation of xaxis is ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  All of the above 
Question number: 614
Question
MCQ▾A chord of a circle is 12 cm in length and its distance from the center is 8 cm. Find the length of the chord of the same circle which is at a distance of 6 cm from the center.
Choices
Choice (4)  Response  

a.  16 cm  
b.  24 cm  
c.  18 cm  
d.  30 cm 