IMO Level 1 Mathematics Olympiad (SOF) Class 5: Questions 152  158 of 838
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Question number: 152
Question
What is 100.001 rounded to the nearest value?
Choices
Choice (4)  Response  

a.  001 

b.  100.0 

c.  100001 

d.  100.001 

Question number: 153
Question
I think of a decimal number. After I have subtracted 2.3 from it, then multiplied by 2 and then added 0.6, I get 2. What is the decimal number?
Choices
Choice (4)  Response  

a.  5 

b.  3 

c.  0 

d.  Question does not provide sufficient data or is vague 

Question number: 154
Question
What mixed number represents the blue shaded portion of the two models shown below?
Choices
Choice (4)  Response  

a. 


b. 


c.  1 

d.  All of the above 

Question number: 155
Appeared in Year: 2014
Question
How many shapes do not have any line of symmetry?
Choices
Choice (4)  Response  

a.  2 

b.  3 

c.  4 

d.  1 

Question number: 156
Question
What fraction of the figure is yellow shaded?
Choices
Choice (4)  Response  

a. 


b.  1 

c. 


d.  8 

Question number: 157
Question
Which fraction is equal to 0.1?
Choices
Choice (4)  Response  

a.  1 

b. 


c.  0 

d.  1.0 

Question number: 158
Question
I think of a decimal number. After I have multiplied by 2 from it then added 2.1 and then I have subtracted 3.2, I get 3.4. what is the decimal number?
Choices
Choice (4)  Response  

a.  2 

b.  2.25 

c.  2.23 

d.  None of the above 
