NSTSE (National Science Talent Search Exam Unified Council) Class 8: Questions 212  218 of 2028
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Question number: 212
» Mathematics » Square and Square Roots
Question
The least perfect square which is divisible by 2,4, 6 is:
Choices
Choice (4)  Response  

a.  24 

b.  28 

c.  16 

d.  36 

Question number: 213
Question
The factors of are:
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 214
» Mathematics » Square and Square Roots
Question
Which of the following is a Pythagorean triplet?
Choices
Choice (4)  Response  

a.  (6,7, 10) 

b.  (2,4, 5) 

c.  (7,24,25) 

d.  All of the above 

Question number: 215
» Mathematics » Cube and Cube Roots
Question
The radius of a sphere is 2.1 m. Its volume is:
Choices
Choice (4)  Response  

a.  38.808 

b.  38.808 

c.  38.808 cu m 

d.  38.808 cu cm 

Question number: 216
» Mathematics » Direct and Inverse Proportions
Question
x varies inversely as square of y. Given that for . The value of x for will be equal to:
Choices
Choice (4)  Response  

a.  3 

b. 


c. 


d. 


Question number: 217
Question
The frequency table shows the marks obtained by a group of students in a monthly test. Calculate the percentage of students who passed in the test if 40 is the passing mark.
Marks  No. of students 
0  19  3 
20  39  7 
40  59  21 
60  79  14 
80  99  5 
Choices
Choice (4)  Response  

a.  80% 

b.  70% 

c.  65% 

d.  75% 

Question number: 218
» Mathematics » Direct and Inverse Proportions
Question
If , then is equal to:
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

