IMO Mathematics Olympiad Class 9: Questions 476  482 of 919
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Question number: 476
Question
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Choice (4)  Response  

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b. 


c. 


d. 


Question number: 477
» Introduction to Euclid's Geometry
Question
Two distinct points in a plane determine ________ line.
Choices
Choice (4)  Response  

a.  Tnree 

b.  Two 

c.  Unique 

d.  All of the above 

Question number: 478
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Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 479
Question
The mean weight of 80 students in a class is 60 kg. The mean weight of boys is 70 kg while that of the girls is 50 kg. the number of boys and girls are________
Choices
Choice (4)  Response  

a.  35, 75 

b.  45, 35 

c.  40, 40 

d.  10, 30 

Question number: 480
» Introduction to Euclid's Geometry
Question
If ∠A and ∠B are complementary angles and m∠A is x˚, which equation can be used to find m∠B which is denoted by y?
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Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 481
Question
A cloth merchant has announced rebate in prices. If one needs to have a rebate of Rs. 40, then how many shirts each costing Rs. 32, he should purchase?
Choices
Choice (4)  Response  

a.  10 

b.  6 

c.  5 

d.  7 

Question number: 482
Question
By selling a Car for Rs. 70000, a shopkeeper gains . If the profit is reduced to , then the selling price will be ________
Choices
Choice (4)  Response  

a.  Rs. 75000 

b.  Rs. 90000 

c.  Rs. 85000 

d.  Rs. 55000 
