MathematicsPlaying With Numbers (NSTSE (National Science Talent Search Exam Unified Council) Class 6): Questions 69  76 of 83
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2029 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 550.00 or
Question number: 69
» Mathematics » Playing With Numbers
Question
The number 623273 is divisible by
Choices
Choice (4)  Response  

a.  5 

b.  7 

c.  All of the above 

d.  None of the above 

Question number: 70
» Mathematics » Playing With Numbers
Question
The HCF of 15,20 and 30 is
Choices
Choice (4)  Response  

a.  5 

b.  20 

c.  15 

d.  10 

Question number: 71
» Mathematics » Playing With Numbers
Question
The LCM of two numbers is X and their HCF is Y. So, the sum of two numbers is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 72
» Mathematics » Playing With Numbers
Question
The number of prime numbers between 2 and 15 are
Choices
Choice (4)  Response  

a.  5 

b.  4 

c.  3 

d.  6 

Question number: 73
» Mathematics » Playing With Numbers
Question
Difference between a prime (18) and a composite (30) number is
Choices
Choice (4)  Response  

a.  19 

b.  23 

c.  12 

d.  30 

Question number: 74
» Mathematics » Playing With Numbers
Question
60 is written as the product of primes as
Choices
Choice (4)  Response  

a.  2 

b.  2 

c.  2 

d.  2 

Question number: 75
» Mathematics » Playing With Numbers
Question
Observe the following table of sum of odd numbers and multiplication of same pair numbers. Then find the sum of odd numbers from 1 to 29.
Choices
Choice (4)  Response  

a.  227 

b.  100 

c.  121 

d.  225 

Question number: 76
» Mathematics » Playing With Numbers
Question
The greatest number of 5digits exactly divisible by 9,12,16 and 30 is
Choices
Choice (4)  Response  

a.  99603 

b.  99306 

c.  99364 

d.  99360 
