IMO Mathematics Olympiad (SOF) Class 9: Questions 564  569 of 919
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Question number: 564
» Introduction to Euclid's Geometry
Question
The average of elevenmembers cricket team reduces by 2 when two players of ages 30 and 32 leave the team and two new players of equal age join it. The age of each of the newcomers is________.
Choices
Choice (4)  Response  

a.  22 

b.  12 

c.  20 

d.  62 

Question number: 565
Question
The mean of ten items is x and if each item is increased by 4, then its mean will be ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 566
Question
Cards marked with the numbers 2 to 101 are placed in a box and mixed thoroughly. One card is drawn from this bag. The probability that the number on the card is a prime less than 20 is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 567
Question
Hussain’s weight is times more than the weight of Rahim. Their total weight is 90 kg. what is Hussain’s weight?
Choices
Choice (4)  Response  

a.  90 kg 

b.  20 kg 

c.  40 kg 

d.  50 kg 

Question number: 568
» Analytical Reasoning and Logical Reasoning
Question
Which color is opposite to yellow?
Choices
Choice (4)  Response  

a.  Red 

b.  Blue 

c.  Violet 

d.  Purple 

Question number: 569
» Analytical Reasoning and Logical Reasoning
Question
In the number 5904627813 first and sixth digits are interchanged; and similarly the positions of second and seventh digits and so on are interchanged. Which of the following will be the 4^{th} digit from the right after the new arrangement?
Choices
Choice (4)  Response  

a.  1 

b.  0 

c.  9 

d.  4 
