Cube and Cube Roots (IMO Mathematics Olympiad Class 8): Questions 1  8 of 58
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Question number: 1
» Cube and Cube Roots
Question
Three numbers are in the ratio of 4: 3: 2. The sum of their cubes is 21384. The numbers are________.
Choices
Choice (4)  Response  

a. 


b.  15: 30: 45 

c. 


d.  6: 12: 18 

Question number: 2
» Cube and Cube Roots
Question
The value of is ________.
Choices
Choice (4)  Response  

a.  8.5 

b.  4.00 

c.  2.5 

d.  7.5 

Question number: 3
» Cube and Cube Roots
Question
If , then is equal to________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 4
» Cube and Cube Roots
Question
The cube of a number is four times of then find where
Choices
Choice (4)  Response  

a.  4 

b.  2 

c.  1 

d.  0 

Question number: 5
» Cube and Cube Roots
Question
=
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 6
» Cube and Cube Roots
Following Statement is true or false:
The sum of the cubes of first n natural numbers is equal to the square of their sum. This statement is true or not?
Question number: 7
» Cube and Cube Roots
Question
The cube root of is________.
Choices
Choice (4)  Response  

a.  16 

b.  8 

c.  64 

d.  4 

Question number: 8
» Cube and Cube Roots
Question
In the five digit number 13ab4, a is the greatest single digit perfect cube and a is greater four times of b. then find the sum of the number and its cube root is________.
Choices
Choice (4)  Response  

a.  13824 

b.  13825 

c.  13820 

d.  13848 
