Mathematics [NSTSE (National Science Talent Search Exam Unified Council) Class 9]: Questions 731  739 of 989
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Question number: 731
» Mathematics » Surface Areas & Volumes
Question
The height and radius of a cone are 6 cm and 8 cm respectively. Its curved surface area must be is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 732
» Mathematics » Polynomials
Question
Factors of
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 733
» Mathematics » Heron's Formula
Question
Two adjacent sides of a parallelogram are 14 cm and 11 cm. One of its diagonals is 17 cm. Then the area of parallelogram is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 734
» Mathematics » Number Systems
Question
Which step in the following problem is wrong?
Step – 1:
Step – 2:
Step – 3:
Step – 4:
Choices
Choice (4)  Response  

a.  Step – 2  
b.  Step – 4  
c.  Step – 3  
d.  Step – 1 
Question number: 735
» Mathematics » Heron's Formula
Question
The area of a triangle whose sides are 26,28 and 30 cm.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 736
» Mathematics » Number Systems
Question
What number should be added to so as to get ?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 737
» Mathematics » Polynomials
Question
If and then ________.
Choices
Choice (4)  Response  

a.  513  
b.  378  
c.  162  
d.  216 
Question number: 738
» Mathematics » Number Systems
Question
The greatest among the following is
I. II. III. IV.
Choices
Choice (4)  Response  

a.  IV  
b.  I  
c.  III  
d.  II 
Question number: 739
» Mathematics » Statistics
Question
The mean of 5 observations is 60. If one observation, namely 6 is added, the new mean is
Choices
Choice (4)  Response  

a.  55  
b.  71  
c.  51  
d.  54 