NSTSE (National Science Talent Search Exam Unified Council) Class 8: Questions 1167  1174 of 2028
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Question number: 1167
» Mathematics » Comparing Quantities
Question
A certain number of men can finish a piece of work in 100 days. If there were 10 men less, it would take 10 days more for the work to be finished. How many men were there originally?
Choices
Choice (4)  Response  

a.  75  
b.  82  
c.  110  
d.  100 
Question number: 1168
» Chemistry » Synthetic Fibers and Plastics
Question
Which of the following fibre is made of coal, air and water?
Choices
Choice (4)  Response  

a.  Rayon  
b.  Polyester  
c.  Terrycot  
d.  Nylon 
Question number: 1169
Question
The real factors of are:
Choices
Choice (4)  Response  

a.  Does not exist  
b. 
 
c. 
 
d.  Question does not provide sufficient data or is vague 
Question number: 1170
» Mathematics » Rational Numbers
Question
The product of two rational numbers is . If one of the numbers is , then the other number is:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 1171
» Mathematics » Square and Square Roots
Question
The least perfect square exactly divisible by each of the numbers 6,9, 15 and 20 is:
Choices
Choice (4)  Response  

a.  225  
b.  900  
c.  400  
d.  3,600 
Question number: 1172
Question
The factors of are:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 1173
» Chemistry » Synthetic Fibers and Plastics
Question
Which of the following is the first commercially synthesized fibre?
Choices
Choice (4)  Response  

a.  Rayon  
b.  Cotton  
c.  Wool  
d.  Nylon 
Question number: 1174
» Mathematics » Practical Geometry
Question
The following figure shows a polygon with all its exterior angles.
The value of x is:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
