IMO Mathematics Olympiad (SOF) Class 6: Questions 131  137 of 1049
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Question number: 131
Question
Observe the following patterns. Then find the sum of .
………………………………………………………. ……………………………………………………….
Choices
Choice (4)  Response  

a.  64 

b.  100 

c.  121 

d.  81 

Question number: 132
Question
Which sign will come in the blank space to make the expression true?
Choices
Choice (4)  Response  

a.  ≤ 

b.  > 

c.  < 

d.  = 

Question number: 133
Question
The number (12, 7) are
Choices
Choice (4)  Response  

a.  Coprime numbers 

b.  Prime numbers 

c.  Prime and coprime 

d.  None of the above 

Question number: 134
Question
Add the number obtained by reversing the digits of the number 59371 to the number obtained by interchanging the digits in the unit’s place and the thousand’s place of the same number, we get________.
Choices
Choice (4)  Response  

a.  68774 

b.  86447 

c.   68774 

d.  67784 

Question number: 135
Question
If negative sign precedes a bracket the sign of the terms inside the bracket will ________ when the bracket is removed.
Choices
Choice (4)  Response  

a.  Change 

b.  Not change 

c.  Be 0 

d.  Depends on the bracket 

Question number: 136
Question
1265 is divisible by
Choices
Choice (4)  Response  

a.  3 

b.  11 

c.  10 

d.  2 

Question number: 137
Question
There are 207 white balls and 115 blue balls. These balls are to be arranged in buckets containing the same number of balls. Then the greatest number of balls possible in each bucket is
Choices
Choice (4)  Response  

a.  217 

b.  18 

c.  28 

d.  23 
