NSTSE (National Science Talent Search Exam Unified Council) Class 7: Questions 415  420 of 1732
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Question number: 415
» Mathematics » Rational Numbers
Question
The product of two rational numbers is . If one of the number is , then the other number is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 416
» Mathematics » Integers
Question
While removing brackets the order in which the brackets are removed is
Choices
Choice (4)  Response  

a.  {}, (), []  
b.  [], {}, ()  
c.  (), {}, []  
d.  None of the above 
Question number: 417
» Mathematics » Integers
Question
Identity element w. r. t. subtraction in integers is
Choices
Choice (4)  Response  

a.  Does not exist  
b.   1  
c.  1  
d.  0 
Question number: 418
» Mathematics » Exponents and Powers
Question
The solution of is
Choices
Choice (4)  Response  

a.  2  
b.  5  
c. 
 
d.  1 
Question number: 419
» Mathematics » Perimeter and Area
Question
The difference between the length and breadth of a rectangle is 46 m. If the perimeter is m, then the area is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 420
» Mathematics » Lines and Angles
Question
In a , D is any point on AB and meets AC at E. If AD = 3.5 cm, DB = 3 cm and AE = 2 cm then AC = ________.
Choices
Choice (4)  Response  

a.  6 cm  
b.  3.7 cm  
c.  6.5 cm  
d.  4 cm 