IMO Mathematics Olympiad (SOF) Class 9: Questions 885  890 of 919
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Question number: 885
» Analytical Reasoning and Logical Reasoning
Question
If PAPER = 56 and UNCLE = 55, then WORKBOOK=?
Choices
Choice (4)  Response  

a.  115 

b.  105 

c.  100 

d.  110 

Question number: 886
Question
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 887
Question
Eight people are planning to share equally the cost of a rental car. If one person withdraws from the arrangement and the others share equally the entire rental of the car, then the share of each of the remaining persons is increased by ________ of the original share.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 888
Question
The number of positive integers k for which the equation has an integer solution for x is ________
Choices
Choice (4)  Response  

a.  0 

b.  1 

c.  1 

d.  2 

Question number: 889
Question
A box contains 12 balls out of which x are black. If one ball is drawn at random from the box, what is the probability that it will be a black ball? If 6 more black balls are put in the box, the probability of drawing a black ball is now double of what is was before, then x is________
Choices
Choice (4)  Response  

a.  3 

b.  7 

c.  5 

d.  2 

Question number: 890
» Introduction to Euclid's Geometry
Question
Two angles are complementary. The measure of one angle is 15˚ more than twice the other. What is the measure of the smaller angle?
Choices
Choice (4)  Response  

a.  25˚ 

b.  35˚ 

c.  55˚ 

d.  65˚ 
