NSTSE Class 5: Questions 492  499 of 1242
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Question number: 492
» Mathematics » Factors and Multiples
Question
Which of the following are two consecutive prime numbers that differ by 2?
Choices
Choice (4)  Response  

a.  Composite numbers 

b.  Coprimes 

c.  Twin primes 

d.  All of the above 

Question number: 493
» Mathematics » Factors and Multiples
Question
When a number X is added to 6, the sum is divisible by 8. What could the number X be?
Choices
Choice (4)  Response  

a.  34 

b.  41 

c.  39 

d.  12 

Question number: 494
» Mathematics » Factors and Multiples
Question
Identify the numbers which have at least 1 factor other than 1 and itself.
Choices
Choice (4)  Response  

a.  Prime numbers 

b.  Coprime numbers 

c.  Twin numbers 

d.  Composite numbers 

Question number: 495
» Mathematics » Fractions
Question
Identify the largest fraction among the following.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 496
» Mathematics » Factors and Multiples
Question
What is the H. C. F. of two coprime numbers?
Choices
Choice (4)  Response  

a.  2 

b.  0 

c.  1 

d.  Their product 

Question number: 497
» Mathematics » Factors and Multiples
Question
A box had some pens in it. When the pens are distributed equally to 15 children, none remained but while distributing to 16 children, 6 children got 1 pen less than the others. How many pens were there in the box?
Choices
Choice (4)  Response  

a.  86 

b.  90 

c.  96 

d.  75 

Question number: 498
» Mathematics » Fractions
Question
What is the sum of the reciprocals of 7 and ?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 499
» Mathematics » Factors and Multiples
Question
What are the common factors of 12 and 42?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

