IMO Level 1 Mathematics Olympiad (SOF) Class 5: Questions 283  288 of 838
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Question number: 283
Question
Which of the following number is smaller than 260000 but greater than 210000?
Choices
Choice (4)  Response  

a.  206000 

b.  201000 

c.  210001 

d.  None of the above 

Question number: 284
Question
Number of zeroes in 10 million are ________?
Choices
Choice (4)  Response  

a.  5 

b.  7 

c.  4 

d.  6 

Question number: 285
Question
I think of a decimal number. After I have multiplied it by 5 then added 3.4 and then I have subtracted 7.4, I get 0.5. What is the decimal number?
Choices
Choice (4)  Response  

a.  0.9 

b.  1 

c.  0.1 

d.  All of the above 

Question number: 286
Question
Which square must be shaded so that the figure has a line of symmetry?
Choices
Choice (4)  Response  

a.  C 

b.  A 

c.  B 

d.  Both b. and c. are correct 

Question number: 287
Question
How many of the following letters have at least one line of symmetry?
Choices
Choice (4)  Response  

a.  3 

b.  1 

c.  6 

d.  2 

Question number: 288
Question
What fraction of the figure is yellow shaded?
Choices
Choice (4)  Response  

a.  3 

b. 


c.  Question does not provide sufficient data or is vague 

d.  All of the above 
