IMO Mathematics Olympiad (SOF) Class 9: Questions 719  724 of 919
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Question number: 719
Question
If show that = ________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 720
» Linear Equations in Two Variables
Question
Anu had 6 pairs of shoes. She let Mohit borrow x pairs of shoes, and then she has 4 pairs left. Which equation is correct this solution?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 721
» Analytical Reasoning and Logical Reasoning
Statement
1. All microprocessors are computers
2. All computers are modems
Conclusions

1. All microprocessors are modems

2. All modems are microprocessors
Choices
Choice (4)  Response  

a.  None of the conclusions follow. 

b.  All of the conclusions follow. 

c.  Only conclusion Ⅱ can follow. 

d.  Only conclusion Ⅰ can follow. 

Question number: 722
» Analytical Reasoning and Logical Reasoning
Question
In a class of 35 students, Hardik is placed 7^{th} from the bottom whereas Ravi is placed 9^{th} from the top. Ankur is placed exactly in between the two. What is Hardik’s position from Ankur?
Choices
Choice (4)  Response  

a.  10^{th} 

b.  8^{th} 

c.  12^{th} 

d.  4^{th} 

Question number: 723
Question
A man rows downstream 40 km and upstream 20 km, taking 10 hours each time. The velocity of current is ________
Choices
Choice (4)  Response  

a.  1 km/hr 

b.  3 km/hr 

c.  2 km/hr 

d.  5 km/hr 

Question number: 724
» Linear Equations in Two Variables
Question
The graph of is
Choices
Choice (4)  Response  

a.  II 

b.  III 

c.  IV 

d.  I 
