MathematicsPlaying with Numbers (NSTSE (National Science Talent Search Exam Unified Council) Class 8): Questions 1  8 of 44
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Question number: 1
» Mathematics » Playing with Numbers
Question
The number 1,53,690 is divisible by
Choices
Choice (4)  Response  

a.  2 

b.  5 

c.  5 & 2 

d.  All of the above 

Question number: 2
» Mathematics » Playing with Numbers
Question
There is one number which is formed by writing one digit 6 times (e. g. 111111,666666 etc. ). Such a number is always divisible by:
Choices
Choice (4)  Response  

a.  7 only 

b.  11 only 

c.  13 only 

d.  All a. , b. and c. are correct 

Question number: 3
» Mathematics » Playing with Numbers
Question
What value should be given to * so that the number 63 * 474 is divisible by 11?
Choices
Choice (4)  Response  

a.  9 

b.  1 

c.  7 

d.  3 

Question number: 4
» Mathematics » Playing with Numbers
Question
What value should be given to * so that the number 728 * 84 is divisible by 11?
Choices
Choice (4)  Response  

a.  3 

b.  6 

c.  2 

d.  0 

Question number: 5
» Mathematics » Playing with Numbers
Question
In which of the following pairs of numbers it is true that their product is one fifth of their sum?
Choices
Choice (4)  Response  

a.  1, 

b.  1, 

c.  1, 

d.  1,4 

Question number: 6
» Mathematics » Playing with Numbers
Question
The number 8,775,540 is divisible by
Choices
Choice (4)  Response  

a.  5 

b.  5 & 9 

c.  9 

d.  Question does not provide sufficient data or is vague 

Question number: 7
» Mathematics » Playing with Numbers
Question
The number 567 is divisible by each of the following numbers except ________.
Choices
Choice (4)  Response  

a.  9 

b.  6 

c.  3 

d.  Question does not provide sufficient data or is vague 

Question number: 8
» Mathematics » Playing with Numbers
Question
Which of the following numbers is exactly divisible by 99?
Choices
Choice (4)  Response  

a.  114345 

b.  125792 

c.  3572404 

d.  913464 
