MathematicsPlaying with Numbers (NSTSE (National Science Talent Search Exam Unified Council) Class 6): Questions 1  10 of 83
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Question number: 1
» Mathematics » Playing with Numbers
Question
A set of numbers which do not have any other common factor other than 1 are called
Choices
Choice (4)  Response  

a.  twin primes 

b.  Composite 

c.  Co primes 

d.  All of the above 

Question number: 2
» Mathematics » Playing with Numbers
Question
HCF of 8 and 12 is
Choices
Choice (4)  Response  

a.  4 

b.  8 

c.  6 

d.  12 

Question number: 3
» Mathematics » Playing with Numbers
Question
LCM of 76 and 36 is
Choices
Choice (4)  Response  

a.  846 

b.  684 

c.  648 

d.  670 

Question number: 4
» Mathematics » Playing with Numbers
Question
LCM of 12 and 34 is
Choices
Choice (4)  Response  

a.  240 

b.  62 

c.  12 

d.  204 

Question number: 5
» Mathematics » Playing with Numbers
Question
A prime number can be divided evenly only by________
Choices
Choice (4)  Response  

a.  1 or it self 

b.  2 or it self 

c.  1 

d.  0 

Question number: 6
» Mathematics » Playing with Numbers
Question
If a number can be expressed as a product of two whole numbers, then the whole number are called
Choices
Choice (4)  Response  

a.  Coprimes 

b.  Factors 

c.  Composite 

d.  None of the above 

Question number: 7
» Mathematics » Playing with Numbers
Question
HCF of two coprime numbers is their
Choices
Choice (4)  Response  

a.  product 

b.  quotient 

c.  difference 

d.  Sum 

Question number: 8
» Mathematics » Playing with Numbers
Question
When we multiply 2 numbers, the answer is called the
Choices
Choice (4)  Response  

a.  prime 

b.  Even 

c.  product 

d.  None of the above 

Question number: 9
» Mathematics » Playing with Numbers
Question
An example of composite is
Choices
Choice (4)  Response  

a.  37 

b.  53 

c.  121 

d.  19 

Question number: 10
» Mathematics » Playing with Numbers
Question
Any integer that can be divided exactly by 2.
Choices
Choice (4)  Response  

a.  Even 

b.  odd 

c.  Composite 

d.  All of the above 
