IMO Level 1 Mathematics Olympiad (SOF) Class 8: Questions 678  685 of 1040
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Question number: 678
Question
The hours in which 13 students watched TV, is________.
Choices
Choice (4)  Response  

a.  11 

b.  15 

c.  13 

d.  12 

Question number: 679
Question
If is divisible by 3, where z is a digit less than 5, then the values of z are________.
Choices
Choice (4)  Response  

a.  1,2 

b.  1,0 

c.  0,3 

d.  3,1 

Question number: 680
Question
If in a number difference between the sum of digits at its odd places and that of digits at the even places is given 0, then the number and difference is divisible by________.
Choices
Choice (4)  Response  

a.  2 

b.  11 

c.  7 

d.  9 

Question number: 681
Question
In a division sum, the divisor is 12 times the quotient and 5 times the remainder. If the remainder is 48, then dividend is________.
Choices
Choice (4)  Response  

a.  2424 

b.  8484 

c.  4848 

d.  2021 

Question number: 682
Question
On dividing 12401 by a certain number, we get 76 as quotient and 13 as remainder. What is the divisor?
Choices
Choice (4)  Response  

a.  166 

b.  160 

c.  163 

d.  165 

Question number: 683
Question
14321 is divisible by________.
Choices
Choice (4)  Response  

a.  9 

b.  3 

c.  4 

d.  None of the above 

Question number: 684
Question
On dividing 6740 by a certain number, we get 56 as quotient and 20 as remainder. What is the divisor?
Choices
Choice (4)  Response  

a.  125 

b.  121 

c.  120 

d.  126 

Question number: 685
Question
The largest natural number by which the product of three consecutive even natural numbers is always divisible is________.
Choices
Choice (4)  Response  

a.  28 

b.  48 

c.  96 

d.  18 
