IMO Level 1 Mathematics Olympiad (SOF) Class 8: Questions 427  434 of 1040
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Question number: 427
» Algebraic Expressions and Identities
Question
If , then is________.
Choices
Choice (4)  Response  

a.  2  
b.  3  
c.  1  
d.  4 
Question number: 428
» Algebraic Expressions and Identities
Question
The quotient when is divided by is________.
Choices
Choice (4)  Response  

a.  3q  
b. 
 
c. 
 
d. 

Question number: 429
» Algebraic Expressions and Identities
Question
If , find the value of .
Choices
Choice (4)  Response  

a.  723  
b.  725  
c.  727  
d.  772 
Question number: 430
» Algebraic Expressions and Identities
Question
What must be subtracted from to get ?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 431
» Algebraic Expressions and Identities
Question
The perimeter of a triangle is and two of its sides are and . Find the third side of the triangle.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 432
Question
A hoop is resting vertically at staircase as shown in the diagram. AB = 12 cm and BC = 6 cm. The radius of the hoop is________.
Choices
Choice (4)  Response  

a.  11 cm  
b.  10 cm  
c.  12 cm  
d.  15 cm 
Question number: 433
Question
Find the surface area of a cylinder with diameter of base 5 cm and height 30 cm.
Choices
Choice (4)  Response  

a.  510  
b.  610  
c.  505  
d.  511 
Question number: 434
Question
Two rectangles ABCD and DBEF are as shown in the figure. The area of rectangle DBEF in square units is________.
Choices
Choice (4)  Response  

a.  120  
b.  140  
c.  90  
d.  160 