NSTSE (National Science Talent Search Exam Unified Council) Class 10: Questions 166  173 of 1484
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Question number: 166
» Mathematics » Pair of Linear Equations in Two Variables
Question
The LCM of two numbers is 160 and HCF is 4. If the sum of the number is 56, their difference is,
Choices
Choice (4)  Response  

a.  54 

b.  97 

c.  27 

d.  45 

Question number: 167
» Mathematics » Pair of Linear Equations in Two Variables
Question
Which of the following system of equations has infinitely many solutions?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 168
» Mathematics » Pair of Linear Equations in Two Variables
Question
Which of the following system of equations has no solution?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  None of the above 

Question number: 169
» Mathematics » Pair of Linear Equations in Two Variables
Question
In , if then is________
Choices
Choice (4)  Response  

a.  120° 

b.  180° 

c.  100° 

d.  150° 

Question number: 170
» Mathematics » Pair of Linear Equations in Two Variables
Question
If the ratio of workers to machines in a factory is W and the ratio of machines to workers is M, then W + M is,
Choices
Choice (4)  Response  

a.  Less than 1 

b.  Greater than 1 

c.  Greater than or equal to 1 

d.  Equals to 1 

Question number: 171
» Mathematics » Pair of Linear Equations in Two Variables
Question
If
Choices
Choice (4)  Response  

a.  2 

b.  0 

c.   4 

d.   3 

Question number: 172
» Mathematics » Pair of Linear Equations in Two Variables
Question
If then the value of “x” is________
Choices
Choice (4)  Response  

a.  0.1 

b.  0.3 

c.  0.5 

d.  0.2 

Question number: 173
» Mathematics » Pair of Linear Equations in Two Variables
Question
Assertion (Ꭺ)
Homogeneous system of linear equations is always consistent.
Reason (Ꭱ)
x = 0, y = 0 is always a solution of the homogeneous system of equations with unknowns x and y, then which of the following statement is true?
Choices
Choice (4)  Response  

a.  Ꭺ is false but Ꭱ is true 

b.  Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ 

c.  Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ 

d.  Both Ꭺ and Ꭱ are false 
