IMO Mathematics Olympiad (SOF) Class 5: Questions 398  401 of 837
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Question number: 398
Question
I think of a decimal number. After I have multiplied it by 4 then added 7.4 and then I have subtracted 0.4 from it, I get 8. What is the decimal number?
Choices
Choice (4)  Response  

a.  2.5 

b.  25 

c.  0.25 

d.  All of the above 

Question number: 399
Question
Find out which of the following options contains all the components needed to form below figure.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 400
» Geometry
Question
Find the area of TUVW.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 401
» Geometry
Question
Which figure has minimum area?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
