MathematicsPlaying With Numbers (NSTSE (National Science Talent Search Exam Unified Council) Class 6): Questions 50  58 of 83
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Question number: 50
» Mathematics » Playing With Numbers
Question
The LCM of two numbers is 6444. Which of the following numbers cannot be possibly the HCF of these numbers?
Choices
Choice (4)  Response  

a.  14 

b.  18 

c.  1611 

d.  179 

Question number: 51
» Mathematics » Playing With Numbers
Question
The greatest number which when divides 304 and 365 leaving remainders 4 and 5 respectively is
Choices
Choice (4)  Response  

a.  65 

b.  300 

c.  60 

d.  5 

Question number: 52
» Mathematics » Playing With Numbers
Question
A coprime number is
Choices
Choice (4)  Response  

a.  An even number 

b.  An odd number 

c.  Relatively prime number 

d.  Question does not provide sufficient data or is vague 

Question number: 53
» Mathematics » Playing With Numbers
Question
Which of the following statement is true?
Choices
Choice (4)  Response  

a.  Every prime number is divisible by 1 or itself 

b.  1 is smallest prime number 

c.  Every prime number is an odd number 

d.  All of the above 

Question number: 54
» Mathematics » Playing With Numbers
Question
LCM of 48, 12 and 34 is
Choices
Choice (4)  Response  

a.  1482 

b.  1215 

c.  816 

d.  1420 

Question number: 55
» Mathematics » Playing With Numbers
Question
Common factors of 10 and 15 are
Choices
Choice (4)  Response  

a.  1, 5 

b.  1, 10, 15 

c.  1, 3, 5 

d.  None of the above 

Question number: 56
» Mathematics » Playing With Numbers
Question
How many prime numbers there are from 5 to 40?
Choices
Choice (4)  Response  

a.  9 

b.  10 

c.  12 

d.  11 

Question number: 57
» Mathematics » Playing With Numbers
Question
HCF of 24 and 36 is
Choices
Choice (4)  Response  

a.  12 

b.  11 

c.  7 

d.  10 

Question number: 58
» Mathematics » Playing With Numbers
Question
Three common multiples of 4 and 12
Choices
Choice (4)  Response  

a.  12, 32, 22 

b.  12, 24, 36 

c.  12, 36, 40 

d.  12, 45, 36 
