MathematicsLinear Equations in One Variable [NSTSE (National Science Talent Search Exam Unified Council) Class 8]: Questions 1  7 of 46
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Question number: 1
» Mathematics » Linear Equations in One Variable
Question
If the angles of a triangle are in the ratio 1: 2: 3, then the difference between the greatest and smallest angles is:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 2
» Mathematics » Linear Equations in One Variable
Question
is true when value of x is:
Choices
Choice (4)  Response  

a.  18  
b.  36  
c.  12  
d.  6 
Question number: 3
» Mathematics » Linear Equations in One Variable
Question
If the digit 1 is placed after a two digit number whose tens digit is ‘a’ and units digit is ‘b’, the new number is:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  Question does not provide sufficient data or is vague 
Question number: 4
» Mathematics » Linear Equations in One Variable
Question
When 70 % of a number is added to 90 the result is the number again. The number is
Choices
Choice (4)  Response  

a.  360  
b.  300  
c.  420  
d.  280 
Question number: 5
» Mathematics » Linear Equations in One Variable
Question
A fraction such that if the numerator is multiplied by 3 and the denominator is reduced by 3, we get , but if the numerator is increased by 8 and the denominator is doubled, we get . Then the fraction is:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 6
» Mathematics » Linear Equations in One Variable
Question
Sum of two numbers is 45 and their difference is 19. Then the numbers are:
Choices
Choice (4)  Response  

a.  20,25  
b.  32,13  
c.  26,19  
d.  31,14 
Question number: 7
» Mathematics » Linear Equations in One Variable
Question
X and Y together can do a piece of work in 12 days, which X alone can do in 15 days. In how many days can T do the same work alone?
Choices
Choice (4)  Response  

a.  60 days  
b.  35 days  
c.  45 days  
d.  30 days 