NSTSE (National Science Talent Search Exam Unified Council) Class 10: Questions 379  386 of 1484
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Question number: 379
» Mathematics » Surface Area and Volumes
Question
A cylindrical vessel of diameter 8 cm is partly filled with water. 150 lead balls are dropped in it. The raise in water level is 0.4 cm. The diameter of each ball is ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 380
» Mathematics » Surface Area and Volumes
Question
The lateral surface area of a right circular cylinder with base radius 14 cm and height 5 cm is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  None of the above 
Question number: 381
Question
Express in lowest terms.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  Question does not provide sufficient data or is vague 
Question number: 382
» Mathematics » Quadratic Equations
Question
If has roots which are numerically equal but of opposite signs, the value of ‘n’ must be
Choices
Choice (4)  Response  

a. 
 
b. 
 
c.  0  
d.  1 
Question number: 383
» Mathematics » Surface Area and Volumes
Question
The area of the base of a cone is 154 sq cm. Its height is 24 cm. Then its total surface area is ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 384
Question
If we divide is divided by , then the quotient is ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 385
» Mathematics » Arithmetic Progressions
Question
The AM between and is
Choices
Choice (4)  Response  

a.  51  
b.  43  
c.  63  
d.  49 
Question number: 386
» Mathematics » Quadratic Equations
Question
Two values whose sum is 8 and the absolute value of whose difference is 12 are the roots of the equation
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
