NSTSE (National Science Talent Search Exam Unified Council) Class 10: Questions 524  530 of 1484
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Question number: 524
» Mathematics » Arithmetic Progressions
Question
The sum of ‘n’ terms of the series 2k, 4k, 6k, …. . is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  Question does not provide sufficient data or is vague 
Question number: 525
Question
If then = ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  Question does not provide sufficient data or is vague 
Question number: 526
» Mathematics » Surface Area and Volumes
Question
Ratio of curved surface areas of two cylinders with equal radii and heights of 4 cm and 3 cm respectively is
Choices
Choice (4)  Response  

a.  4: 3  
b.  9: 4  
c.  16: 9  
d.  All of the above 
Question number: 527
» Mathematics » Surface Area and Volumes
Question
A cylindrical vessel of diameter 16 cm is partly filled with water. 75 lead balls are dropped in it. The raise in water level is 0.8 cm. The diameter of each ball is ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 528
» Mathematics » Quadratic Equations
Question
In the equation , the sum of the roots is 2 and the product of the roots is 3. Then h and k have the value ________ respectively.
Choices
Choice (4)  Response  

a.  10 and 1  
b.  5 and 3  
c.  15 and 5  
d.  10 and 1 
Question number: 529
Question
is divisible by when ‘n’ is ________.
Choices
Choice (4)  Response  

a.  A natural number  
b.  An odd number  
c.  A prime number  
d.  An even number 
Question number: 530
Question
How much is more than ?
Choices
Choice (4)  Response  

a.  8ab  
b.   6ab  
c.   8ab  
d.  4ab 