NSTSE (National Science Talent Search Exam Unified Council) Class 10: Questions 140  146 of 1484
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Question number: 140
» Mathematics » Pair of Linear Equations in Two Variables
Question
For what value of k, the system of equations has infinitely many solutions.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 141
» Mathematics » Pair of Linear Equations in Two Variables
Question
The income of P and Q are in the ratio 3: 2 and expenses are in the ratio 5: 3. If both save Rs. 200, what is the income of P?
Choices
Choice (4)  Response  

a.  1200  
b.  700  
c.  1400  
d.  1000 
Question number: 142
» Mathematics » Pair of Linear Equations in Two Variables
Question
The sum of salaries of A and B are Rs. 6800. A spends 60 % of his salary and B spends 50%. If their savings are now in the proportion of 1: 2, what is the salary of B?
Choices
Choice (4)  Response  

a.  4560  
b.  3456  
c.  1250  
d.  2550 
Question number: 143
» Mathematics » Pair of Linear Equations in Two Variables
Question
For what value of k, the system of equations has infinitely many solutions.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 144
» Mathematics » Pair of Linear Equations in Two Variables
Question
The equation has:
Choices
Choice (4)  Response  

a.  Two imaginary root  
b.  One real root  
c.  No root  
d.  One real root and one imaginary root 
Question number: 145
» Mathematics » Pair of Linear Equations in Two Variables
Question
If x, y and are not zero, then equals to,
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 146
» Mathematics » Pair of Linear Equations in Two Variables
Question
The age of a woman is three times the age of her daughter. Five years hence, the age of woman will be two times the age of her daughter. The present age of daughter is,
Choices
Choice (4)  Response  

a.  4  
b.  6  
c.  3  
d.  5 