NSTSE (National Science Talent Search Exam Unified Council) Class 8: Questions 186  194 of 2028
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Question number: 186
» Mathematics » Direct and Inverse Proportions
Question
If , and , then the ratio of is:
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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 
