IMO Mathematics Olympiad Class 6: Questions 247  253 of 1049
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Question number: 247
Question
Multiplying a negative integer for odd number of times gives a ________ result.
Choices
Choice (4)  Response  

a.  0 

b.  Positive 

c.  Negative 

d.  Question does not provide sufficient data or is vague 

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

a. 


b.  2 

c.  1 

d.  0 

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

a.   21 

b.   292 

c.  315 

d.  40 

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.  220 liters 

b.  175 liters 

c.  190 liters 

d.  180 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.  48 

b.  57 

c.  39 

d.  16 

Question number: 252
Question
Find the smallest number which will divide the smallest 3digit number and the smallest 4digit number exactly.
Choices
Choice (4)  Response  

a.  10 

b.  5 

c.  2 

d.  4 

Question number: 253
Question
Which of the following is a perfect cube?
Choices
Choice (4)  Response  

a.  8 

b.  125 

c.  64 

d.  All a. , b. and c. are correct 
