Ratio and Proportion (IMO Mathematics Olympiad (SOF) Class 6): Questions 65  70 of 80
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Question number: 65
» Ratio and Proportion
Question
In an exam, the ratio of marks of mathematics to marks of science is 7: 9. If marks of science is 90, then the marks of mathematics is
Choices
Choice (4)  Response  

a.  70 

b.  80 

c.  75 

d.  71 

Question number: 66
» Ratio and Proportion
Question
A’s money is to B’s money as 2: 3 and B’s money is to C’s money as 5: 7. If A has Rs. 1200, C has
Choices
Choice (4)  Response  

a.  Rs. 2520 

b.  Rs. 2400 

c.  Rs. 1890 

d.  Rs. 2350 

Question number: 67
» Ratio and Proportion
Question
The prices of scooter and a television set are in the ratio 3: 2. If a scooter costs Rs. 6000 more than the television set, the price of the television set is
Choices
Choice (4)  Response  

a.  Rs. 10000 

b.  Rs. 6000 

c.  Rs. 18000 

d.  Rs. 12000 

Question number: 68
» Ratio and Proportion
Question
Divide into three parts such that 2 times the first part, 3 times the second part and 4 times the third part are equal.
Choices
Choice (4)  Response  

a.  236,124,268 

b.  336,224,168 

c.  363,242,186 

d.  636,424,199 

Question number: 69
» Ratio and Proportion
Question
Divide into three parts such that 3 times the first part, 6 times the second part and 9 times the third part are equal.
Choices
Choice (4)  Response  

a.  4258,1329,643 

b.  5328,6129,543 

c.  2385,6192,453 

d.  3258,1629,543 

Question number: 70
» Ratio and Proportion
Question
A liter of kerosene oil weighs 0.819 kg and 10 liters of petrol weigh 7.02 kg, then the ratio of the weight of kerosene oil and petrol per liter is
Choices
Choice (4)  Response  

a.  6: 7 

b.  7: 6 

c.  7: 5 

d.  5: 7 
