NSTSE (National Science Talent Search Exam Unified Council) Class 8: Questions 855  861 of 2028
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Question number: 855
Question
The radius of a cylinder is halved but its lateral surface area is unchanged. Then its height must be:
Choices
Choice (4)  Response  

a.  Doubled 

b.  Constant 

c.  Halved 

d.  Trebled 

Question number: 856
» Mathematics » Playing with Numbers
Question
Which of the following statement is false?
Choices
Choice (4)  Response  

a.  If a number is divisible by 6, it must be divisible by 3. 

b.  If a number is divisible by both 5 and 2, it must be divisible by 10 

c.  The sum of two consecutive even numbers is always divisible by 2 

d.  None of the above 

Question number: 857
» Mathematics » Direct and Inverse Proportions
Question
If 3.25 m of a pole weighs 5.2 kg, what will be the weight of 1.5 m of the same pole?
Choices
Choice (4)  Response  

a.  2.4 kg 

b.  3 kg 

c.  4.6 kg 

d.  3.2 kg 

Question number: 858
» Mathematics » Direct and Inverse Proportions
Question
A woman completes of a job in 15 days. At this rate, how many more days will it takes her to finish the job?
Choices
Choice (4)  Response  

a.  12 

b.  5 

c.  10 

d.  20 

Question number: 859
» Mathematics » Playing with Numbers
Question
Which of the following number is divisible by 11?
Choices
Choice (4)  Response  

a.  754,345 

b.  901,351 

c.  2,610,533 

d.  None of the above 

Question number: 860
» Mathematics » Square and Square Roots
Question
The square root of is:
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 861
» Mathematics » Square and Square Roots
Question
Which of the following is a Pythagorean triplet?
Choices
Choice (4)  Response  

a.  (8,15,17) 

b.  (5,12,15) 

c.  (7,20,21) 

d.  Question does not provide sufficient data or is vague 
