Playing With Numbers (IMO Mathematics Olympiad Class 6): Questions 73  80 of 86
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Question number: 73
» Playing With Numbers
Question
is divisible by
Choices
Choice (4)  Response  

a.  3 & 9 

b.  9 

c.  7 

d.  3 

Question number: 74
» Playing With Numbers
Question
The least number which when increased by 11 is exactly divisible by 11 is
Choices
Choice (4)  Response  

a.  43 

b.  63 

c.  32 

d.  22 

Question number: 75
» Playing With Numbers
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: 76
» Playing With Numbers
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: 77
» Playing With Numbers
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: 78
» Playing With Numbers
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: 79
» Playing With Numbers
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 

Question number: 80
» Playing With Numbers
Question
The numbers which are not multiplies of 2 are called________.
Choices
Choice (4)  Response  

a.  Prime 

b.  Even 

c.  Odd 

d.  Composite 
