Mathematics [NSTSE (National Science Talent Search Exam Unified Council) Class 7]: Questions 721  727 of 1128
Access detailed explanations (illustrated with images and videos) to 1732 questions. Access all new questions tracking exam pattern and syllabus. View the complete topicwise distribution of questions. Unlimited Access & Unlimited Time!
View Sample Explanation or View Features.
Rs. 500.00 OR
How to register? Already Subscribed?
Question number: 721
Question
MCQ▾Which of the following statement is false?
Choices
Choice (4)  Response  

a.  , if n is an even integer  
b.  For any rational number a,  
c.  If then n = 1  
d.  All of the above 
Question number: 722
Question
MCQ▾When two line segments meet at a point forming right angle they are said to be ________ to each other.
Choices
Choice (4)  Response  

a.  Perpendicular  
b.  Parallel  
c.  Equal  
d.  None of the above 
Question number: 723
Question
MCQ▾Find the area of the shaded region of the following figure.
ABCD is a rectangle having length 80 cm and breadth 40 cm. P, Q, R and S are midpoints of AB, BC, CD and AD respectively.
Choices
Choice (4)  Response  

a.  400  
b.  800  
c.  1600  
d.  3200 
Question number: 724
Question
MCQ▾Conjugate surd of is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 725
Question
MCQ▾If two angles in a triangle are and , then the third angle is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 726
Question
MCQ▾The identity element w. r. t multiplication in integers is ________.
Choices
Choice (4)  Response  

a.  1  
b.  1  
c.  0  
d.  None of the above 
Question number: 727
Question
MCQ▾By selling an article for Rs. 500 a man loses 15%. At what cost he will sell in order to gain 20%?
Choices
Choice (4)  Response  

a.  580 Rs.  
b.  1000 Rs.  
c.  760 Rs.  
d.  706 Rs. 