IMO Mathematics Olympiad Class 8: Questions 584  590 of 1029
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Question number: 584
» Direct and Inverse Proportions
Question
If , then the value of is________.
Choices
Choice (4)  Response  

a.  36  
b.  35  
c.  39  
d.  31 
Question number: 585
» Direct and Inverse Proportions
Question
A sum of money is sufficient to pay wages for 15 days and wages for 20 days. The same money is sufficient to pay the wages of both for ________.
Choices
Choice (4)  Response  

a.  10 days  
b.  days  
c.  days  
d.  8 days 
Question number: 586
Question
The value of is________.
Choices
Choice (4)  Response  

a.  675  
b.  690  
c.  630  
d.  655 
Question number: 587
» Direct and Inverse Proportions
Question
If 5 men take an hour to dig a ditch, how long should it take 20 men to dig a ditch of the same type?
Choices
Choice (4)  Response  

a.  14 min  
b.  13 min  
c.  15 min  
d.  21 min 
Question number: 588
Question
If , then the value of is________.
Choices
Choice (4)  Response  

a.  3  
b.  2  
c.  1  
d.  4 
Question number: 589
» Direct and Inverse Proportions
Question
An agent receives a commission of Rs. 30.00 on sales of Rs. 2500.00. The commission he get on sales of Rs. 1000.00 is________.
Choices
Choice (4)  Response  

a.  Rs 2.5  
b.  Rs 1.2  
c.  Rs 2  
d.  Rs 3.5 
Question number: 590
Question
Simplify:
Choices
Choice (4)  Response  

a.  0  
b.  1  
c. 
 
d. 
