IMO Level 1 Mathematics Olympiad (SOF) Class 6: Questions 244  251 of 1059
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Question number: 244
Question
Which of the following set of numbers will make the number sentence true?
________________________ = 61
Choices
Choice (4)  Response  

a.  (7,9, 2) 

b.  (5,10,8) 

c.  (9,6, 4) 

d.  (7,9, 8) 

Question number: 245
Question
is divisible by
Choices
Choice (4)  Response  

a.  3 

b.  9 

c.  3 & 9 

d.  7 

Question number: 246
Question
The least number which when increased by 11 is exactly divisible by 11 is
Choices
Choice (4)  Response  

a.  43 

b.  22 

c.  63 

d.  32 

Question number: 247
Question
Multiplying a negative integer for odd number of times gives a ________ result.
Choices
Choice (4)  Response  

a.  Negative 

b.  0 

c.  Positive 

d.  None of the above 

Question number: 248
Question
The reciprocal of prime number that is placed at third before prime number 23 is
Choices
Choice (4)  Response  

a.  0 

b.  1 

c.  2 

d. 


Question number: 249
Question
Find the sum of the given expression.
Choices
Choice (4)  Response  

a.  40 

b.   292 

c.   21 

d.  315 

Question number: 250
Question
Two tankers contain 760 liters and 570 liters of chemicals respectively, then the maximum capacity of a container which can measure the chemical out of both the tankers when used an exact number of times is ________.
Choices
Choice (4)  Response  

a.  180 liters 

b.  190 liters 

c.  175 liters 

d.  220 liters 

Question number: 251
Question
The least number which when decreased by 9 is exactly divisible by 12,16,24 and 48 is
Choices
Choice (4)  Response  

a.  16 

b.  48 

c.  39 

d.  57 
