IMO Level 1 Mathematics Olympiad (SOF) Class 8: Questions 224  232 of 1040
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Question number: 224
Question
By what least number must 3125 be multiplied to make it perfect cube?
Choices
Choice (4)  Response  

a.  5 

b.  4 

c.  10 

d.  25 

Question number: 225
Question
Three numbers are in the ratio of 1: 2: 3. The sum of their cubes is 98784. The numbers are________.
Choices
Choice (4)  Response  

a.  6: 12: 18 

b.  10: 11: 12 

c. 


d.  15: 30: 45 

Question number: 226
Question
The value of is ________.
Choices
Choice (4)  Response  

a.  8 

b.  4 

c.  5 

d.  6 

Question number: 227
Question
The cube root of is________.
Choices
Choice (4)  Response  

a.  4 

b.  64 

c.  9 

d.  16 

Question number: 228
Question
If, then
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  Question does not provide sufficient data or is vague 

Question number: 229
Question
The cube of an even natural number is________.
Choices
Choice (4)  Response  

a.  Can’t say 

b.  Odd 

c.  Even 

d.  Even or odd 

Question number: 230
Question
The volume of a cube whose surface area is , is________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 231
Question
=
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 232
Question
The cube of a number is 16 times of then find where
Choices
Choice (4)  Response  

a.  2 

b.  4 

c.  1 

d.  0 
