IMO Level 1 Mathematics Olympiad (SOF) Class 5: Questions 15  20 of 888
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Question number: 15
Question
Which of these could be solved by using the sentence
Choices
Choice (4)  Response  

a.  Shan is 3 times as old as as Sanjit. If A is Sanjit’s age in years, how old is Shan?  
b.  Tara is 3 years older than Fanny. If A is Fanny’s age in years, how old is Tara?  
c.  Nayan is onethird as old as Anand. If A is Nayan’s age, how old is Anand?  
d.  Geeta is 3 years younger than Suhana. If A is Suhana’s age in years, how old is Geeta? 
Question number: 16
Question
There are 147 toffees in a packet. How many toffees are there in 9 such packets?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 17
Question
is twice the difference between the 9^{th} and 7^{th} multiple of 5. Find
?
Choices
Choice (4)  Response  

a.  1  
b.  20  
c.  2  
d.  10 
Question number: 18
Question
=________
Choices
Choice (4)  Response  

a.  1  
b.  10  
c.  100  
d.  None of the above 
Question number: 19
Question
Cost of 14 calculators is rupees 1456. How much is the cost of 7 such calculators?
Choices
Choice (4)  Response  

a.  726 rupees  
b.  728 rupees  
c.  826 rupees  
d.  Question does not provide sufficient data or is vague 
Question number: 20
Question
A balloon seller sold 236 red balloons, 23 white balloons and 749 blue balloons. How many balloons were sold in all?
Choices
Choice (4)  Response  

a.  186  
b.  1008  
c.  1005  
d.  654 