IMO Mathematics Olympiad Class 9: Questions 575  581 of 919
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Question number: 575
Question
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 576
Question
Find the remainder when is divided by .
Choices
Choice (4)  Response  

a.  2 

b.  3 

c.  3 

d.  2 

Question number: 577
Question
If the mean of 20 observations is 25 and that of another 5 observations is 14, then the mean of 25 observations is ________
Choices
Choice (4)  Response  

a.  22.8 

b.  22 

c.  15 

d.  15.5 

Question number: 578
Question
If and , then value of is________.
Choices
Choice (4)  Response  

a.  1885 

b.  1890 

c.  1895 

d.  1880 

Question number: 579
Question
A man purchases an blander whose printed price is Rs. 2200. If he received two successive discounts of and , he paid________
Choices
Choice (4)  Response  

a.  Rs. 1121 

b.  Rs. 1132 

c.  Rs. 1221 

d.  Rs. 1232 

Question number: 580
» Linear Equations in Two Variables
Question
If , then values of x are________
Choices
Choice (4)  Response  

a.  x=1 and x=3 

b.  x = 1 and x = 5 

c.  x = 5 and x=1 

d.  x = 2 and x = 3 

Question number: 581
» Analytical Reasoning and Logical Reasoning
Question
Group the given figures into three classes using each figure only once.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

