NSTSE (National Science Talent Search Exam Unified Council) Class 10: Questions 346  352 of 1484
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Question number: 346
» Mathematics » Surface Area and Volumes
Question
The total surface area of a cylinder is 220 sq cm with height 6.5 cm. Then its volume is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 347
» Mathematics » Quadratic Equations
Question
If , then the value of x is
Choices
Choice (4)  Response  

a.  4 or 5  
b.  4 or 5  
c.  3 or 15  
d.  9 or 30 
Question number: 348
» Mathematics » Surface Area and Volumes
Question
The height of a cone is 15 cm. A small cone is cut off at the top by a plane parallel to the base. If its volume is the volume of cone, the height at which the section is made is ________.
Choices
Choice (4)  Response  

a.  9.79 cm  
b.  7.79 cm  
c.  7.97 cm  
d.  9.97 cm 
Question number: 349
» Mathematics » Surface Area and Volumes
Question
Ratio of lateral surface areas of two cylinders with equal heights and radius of 6 cm and 3 cm respectively is
Choices
Choice (4)  Response  

a.  1: 5  
b.  2: 1  
c.  1: 2  
d.  Question does not provide sufficient data or is vague 
Question number: 350
» Mathematics » Arithmetic Progressions
Question
The first four terms of an arithmetic sequence are a, x, b, 2x. The ratio of a to b is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  All of the above 
Question number: 351
Question
If is exactly divisible by , then p = ________.
Choices
Choice (4)  Response  

a.  16  
b.   1  
c.  4  
d.  None of the above 
Question number: 352
» Mathematics » Arithmetic Progressions
Question
The sum of 10 terms of is
Choices
Choice (4)  Response  

a.  110. log2  
b.  log10  
c.  55. log2  
d.  log55 