NSTSE (National Science Talent Search Exam Unified Council) Class 8: Questions 187  196 of 2028
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Question number: 187
Question
The area of a sector of a circle of radius 8 cm cut off by an arc which is 9.25 cm long is:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 188
» Mathematics » Exponents and Powers
Question
Simplify
Choices
Choice (4)  Response  

a.  4  
b.  2  
c. 
 
d. 

Question number: 189
» Mathematics » Comparing Quantities
Question
A fan is listed at Rs. 2000 and a discount of 20 % is offered on the list price. What additional discount must be offered to the customer to bring the net price to 1580?
Choices
Choice (4)  Response  

a.  1.25%  
b.  2.75%  
c.  3%  
d.  5% 
Question number: 190
» Mathematics » Cube and Cube Roots
Question
If 225K is a perfect cube, then the value of K is:
Choices
Choice (4)  Response  

a.  3  
b.  5  
c.  15  
d.  14 
Question number: 191
» Mathematics » Exponents and Powers
Question
Simplify
Choices
Choice (4)  Response  

a. 
 
b.  6  
c.  5  
d. 

Question number: 192
» Mathematics » Direct and Inverse Proportions
Question
The ratio of third proportional to 24 and 60 and the mean proportional between 18 and 50 is:
Choices
Choice (4)  Response  

a.  3: 2  
b.  1: 5  
c.  5: 3  
d.  5: 1 
Question number: 193
» Mathematics » Exponents and Powers
Question
The value of is:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  None of the above 
Question number: 194
» Mathematics » Cube and Cube Roots
Question
If , the least value of ‘a’ is:
Choices
Choice (4)  Response  

a.  6  
b.  3  
c.  9  
d.  Question does not provide sufficient data or is vague 
Question number: 195
» Mathematics » Algebraic Expressions and Identities
Question
If and , then the value of is:
Choices
Choice (4)  Response  

a.  30  
b.  28  
c.  11  
d.  35 
Question number: 196
» Mathematics » Cube and Cube Roots
Question
The cube of a number is 64 times the cube of another number. If the sum of the cubes of numbers is 8125, the difference of the numbers is:
Choices
Choice (4)  Response  

a.  15  
b.  20  
c.  12  
d.  5 