NSTSE (National Science Talent Search Exam Unified Council) Class 10: Questions 415  421 of 1484
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Question number: 415
» Mathematics » Surface Area and Volumes
Question
A cone of radius 30 cm is divided into two parts by drawing a plane through the midpoints of its axis, parallel to its base. The ratio of volumes of the two parts formed is ________.
Choices
Choice (4)  Response  

a.  7: 1 

b.  1: 6 

c.  1: 7 

d.  1: 14 

Question number: 416
» Mathematics » Surface Area and Volumes
Question
The lateral surface area of a right circular cylinder with base radius 7 cm and height 15 cm is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  All of the above 

Question number: 417
» Mathematics » Arithmetic Progressions
Question
If the distinct nonzero numbers form a geometric progression with common ratio “r”, then “r” satisfies the equation ________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  None of the above 

Question number: 418
Question
Express as a rational expression.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 419
Question
= ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  All of the above 

Question number: 420
» Mathematics » Surface Area and Volumes
Question
The base radius of a cylinder is times its height. The cost of painting its CSA at is Rs. 16.94. The volume of the liquid is ________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 421
» Mathematics » Surface Area and Volumes
Question
The diameter of a copper sphere is 12 cm. It is beaten and drawn into a wire of diameter 0.4 cm. The length of wire is ________.
Choices
Choice (4)  Response  

a.  1800 cm 

b.  3600 cm 

c.  3000 cm 

d.  7200 cm 
