IMO Level 1 Mathematics Olympiad (SOF) Class 10: Questions 466  472 of 968
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Question number: 466
» Triangle, Circle & Constructions
Question
In rhombus ABCD, =________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 467
Question
The area of a triangle is 5 square units, two of its vertices are . The third vertex lies on . What will be the third vertex?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 468
Question
The average temperatures of Tuesday, Wednesday and Thursday was . The average temperature of Wednesday, Thursday and Friday was . If the temperature on Tuesday was , then the temperature on Friday was ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 469
Question
The algebraic sum of the deviations of a frequency distribution from its mean is ________
Choices
Choice (4)  Response  

a.  0  
b.  A nonzero number  
c.  Always positive  
d.  Always negative 
Question number: 470
Question
The mean of 10 observations is . if each observation is multiplied by 2, then what is the new mean?
Choices
Choice (4)  Response  

a.  15  
b.  16  
c.  17  
d.  11 
Question number: 471
Question
The distance between the points is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 472
Question
If are the midpoints of the sides of , the area of the triangle is ________
Choices
Choice (4)  Response  

a.  29 sq. units  
b.  44 sq. units  
c.  55 sq. units  
d.  35 sq. units 