Fractions and Decimals (IMO Mathematics Olympiad (SOF) Class 5): Questions 79  86 of 91
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Question number: 79
» Fractions and Decimals
Question
I think of a decimal number. After I have multiplied it by 7 from it then added 3.1 and then I have subtracted 6.7, I get 0.1. What is the decimal number?
Choices
Choice (4)  Response  

a.  52 

b.  0.52 

c.  5.2 

d.  All of the above 

Question number: 80
» Fractions and Decimals
Question
What is 5643.098 rounded to the nearest tens.
Choices
Choice (4)  Response  

a.  5643 

b.  5643.1 

c.  5643.99 

d.  5643.0 

Question number: 81
» Fractions and Decimals
Question
What is 5040.675 rounded to the nearest value?
Choices
Choice (4)  Response  

a.  5041 

b.  5042 

c.  5039 

d.  5040 

Question number: 82
» Fractions and Decimals
Question
How many minutes in of an hour?
Choices
Choice (4)  Response  

a.  8 

b.  4 

c.  84 

d.  48 

Question number: 83
» Fractions and Decimals
Question
Which fraction is equal to 34.5?
Choices
Choice (4)  Response  

a.  34.5 

b. 


c.  345 

d. 


Question number: 84
» Fractions and Decimals
Question
Half of a number is 8. What is of the same number?
Choices
Choice (4)  Response  

a. 


b.  32 

c. 


d.  232 

Question number: 85
» Fractions and Decimals
Question
What fraction of the figure is yellow shaded?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  Question does not provide sufficient data or is vague 

Question number: 86
» Fractions and Decimals
Question
I thought of a decimal number. After I had multiplied it by 3, then added 2.5 and then divided by 3, I got 3.5. what was the decimal number?
Choices
Choice (4)  Response  

a.  1 

b.  2.67 

c.  2 

d.  All of the above 
