Direct and Inverse Proportions (IMO Mathematics Olympiad Class 8): Questions 1  6 of 62
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Question number: 1
» Direct and Inverse Proportions
Question
can do a piece of work in 15 days and can do alone it in 10 days. B works at it for 6 days and then leaves. alone can finish the remaining work in________.
Choices
Choice (4)  Response  

a.  5 days 

b.  6 days 

c.  7.5 days 

d.  6.5 days 

Question number: 2
» Direct and Inverse Proportions
Question
If , then the value of is________.
Choices
Choice (4)  Response  

a.  9 

b.  10 

c.  6 

d.  5 

Question number: 3
» Direct and Inverse Proportions
Question
A shopkeeper has just enough money to buy 45 cycles worth Rs. 600.00 each. If each cycle were to cost Rs. 15.00 more, then number of cycles, he will be able to buy with that amount of money, is________.
Choices
Choice (4)  Response  

a.  44 

b.  42 

c.  35 

d.  40 

Question number: 4
» Direct and Inverse Proportions
Question
A clothing store is able to purchase 20 coats worth Rs. 500.00 each. If each coat were to cost Rs. 50.00 more, then numbers of coats that will be able to buy with that amount of money is________.
Choices
Choice (4)  Response  

a.  18 

b.  20 

c.  25 

d.  16 

Question number: 5
» Direct and Inverse Proportions
Question
A bag contains 25 paise, 10 paise and 5 paise coins in the ratio 2: 3: 4. If their total value is Rs. 20, the number of 5 paise coins is ________.
Choices
Choice (4)  Response  

a.  50 

b.  80 

c.  60 

d.  70 

Question number: 6
» Direct and Inverse Proportions
Question
Two numbers are in the ratio 1: 3. If each number is increased by 9, the ratio becomes 3: 5. The numbers are________.
Choices
Choice (4)  Response  

a.  13, 14 

b.  3.5, 14.7 

c.  35, 25 

d.  4.5, 13.5 
