IMO Mathematics Olympiad (SOF) Class 5: Questions 145  151 of 837
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Question number: 145
Question
Which of the following correctly shows 12345678 according to Indian place value chart?
Choices
Choice (4)  Response  

a.  1,23,45,678 

b.  123,45,678 

c.  12,34,56,78 

d.  Question does not provide sufficient data or is vague 

Question number: 146
Question
I think of a decimal number. After I have subtract 2.7 from it, then multiplied by 3 and then added 0.19, I get 10.2. What is the decimal number?
Choices
Choice (4)  Response  

a.  18 

b.  4.5 

c.  18.11 

d.  6.04 

Question number: 147
Question
Which of the following is not correctly matched?
Choices
Choice (4)  Response  

a.  X = 10 

b.  XII = 12 

c.  I = 1 

d.  V = 2 

Question number: 148
Question
What mixed number represents the red shaded portion of the two models shown below?
Choices
Choice (4)  Response  

a. 


b.  0 

c.  1 

d.  Question does not provide sufficient data or is vague 

Question number: 149
Question
XC is same as ________.
Choices
Choice (4)  Response  

a.  100  50 

b.  100 + 10 

c.  100  9 

d.  100  10 

Question number: 150
Question
In 5,67,43,198 the digit 6 stands for________.
Choices
Choice (4)  Response  

a.  6 hundred 

b.  6 thousand 

c.  60 lakhs 

d.  6 lakhs 

Question number: 151
Question
Which of the following figures has a line of symmetry?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
