Playing With Numbers (IMO Mathematics Olympiad Class 8): Questions 16  23 of 61
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1029 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 450.00 or
Question number: 16
» Playing With Numbers
Question
If and there is no carry on addition, then the value of B is________.
Choices
Choice (4)  Response  

a.  0 

b.  5 

c.  3 

d.  1 

Question number: 17
» Playing With Numbers
Question
If divided by 5 leaves a remainder of 4, and divided by 2 leaves a remainder of 1, then the one’s digit of N is________.
Choices
Choice (4)  Response  

a.  3 

b.  4 

c.  7 

d.  9 

Question number: 18
» Playing With Numbers
Question
If is divisible by 3, where x is a digit less than 5, then the values of x are________.
Choices
Choice (4)  Response  

a.  3 

b.  1 

c.  0 

d.  2 

Question number: 19
» Playing With Numbers
Question
If and there is no carry on addition, then the value of B is________.
Choices
Choice (4)  Response  

a.  3 

b.  1 

c.  5 

d.  4 

Question number: 20
» Playing With Numbers
Question
The difference of the squares of two consecutive odd integer is divisible by which of the following integers?
Choices
Choice (4)  Response  

a.  7 

b.  5 

c.  8 

d.  2 

Question number: 21
» Playing With Numbers
Question
A 5digit number xy721 is divisible by 3 such that x + y < 5, where x and y are digits, then possible values of (x, y) are________.
Choices
Choice (4)  Response  

a.  (1, 1), (2, 0) 

b.  (1, 2), (2, 0) 

c.  (0, 2), (2, 0) 

d.  (1, 1), (0, 2) 

Question number: 22
» Playing With Numbers
Question
A 4 digit number ‘abcd’ is divisible by 8 if________.
Choices
Choice (4)  Response  

a.  b + c + d is divisible by 8 

b.  a + 2b + c + d is divisible by 8 

c.  a + b + c is divisible by 8 

d.  a + b + c + d is divisible by 8 

Question number: 23
» Playing With Numbers
Question
If a number has unit digit any of 0, 2, 4, 6, 8. Then it is divisible by________.
Choices
Choice (4)  Response  

a.  3 

b.  2 

c.  9 

d.  5 
