IMO Mathematics Olympiad Class 8: Questions 710  718 of 1029
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Question number: 710
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: 711
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: 712
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: 713
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: 714
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 

Passage
Number of students and their marks are given in below table. Answer the following questions.
Marks (classinterval)  No. of students 
30  40  12 
40  50  13 
50  60  04 
60  70  15 
70  80  06 
Question number: 715 (1 of 4 Based on Passage) Show Passage
Question
The number of students got 40 or more than 40 marks is________.
Choices
Choice (4)  Response  

a.  28 

b.  38 

c.  35 

d.  30 

Question number: 716 (2 of 4 Based on Passage) Show Passage
Question
The number of students got 60 or more than 60 marks is________.
Choices
Choice (4)  Response  

a.  20 

b.  25 

c.  22 

d.  21 

Question number: 717 (3 of 4 Based on Passage) Show Passage
Question
The number of students got 50 or more than 50 marks is________.
Choices
Choice (4)  Response  

a.  20 

b.  21 

c.  22 

d.  25 

Question number: 718 (4 of 4 Based on Passage) Show Passage
Question
The number of students got 70 or more than 70 marks is________.
Choices
Choice (4)  Response  

a.  6 

b.  1 

c.  5 

d.  2 
