NCO Cyber Olympiad (SOF) Class 6: Questions 24  30 of 722
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Question number: 24
» Computers » Memory & Storage
Question
Which of the following is a secondary memory device?
Choices
Choice (4)  Response  

a.  Keyboard  
b.  ALU  
c.  Hard drives  
d.  None of the above 
Question number: 25
» Mental Ability » Basic Algebra
Question
What must be added to to make it ?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 26
» Mental Ability » Basic Arithmetic
Question
L. C. M. of 81 and 54 is ________.
Choices
Choice (4)  Response  

a.  162  
b.  27  
c.  81  
d.  54 
Question number: 27
» Mental Ability » Basic Arithmetic
Question
Find the prime number from given numbers.
Choices
Choice (4)  Response  

a.  27  
b.  39  
c.  69  
d.  23 
Question number: 28
» Mental Ability » Basic Arithmetic
Question
A basket contains 300 mangoes. 75 mangos were distributed among students. The percentage of mangoes left in the basket is ________.
Choices
Choice (4)  Response  

a.  75%  
b.  25%  
c.  30%  
d.  50% 
Question number: 29
» Non Verbal Reasoning » Cubes and Dices
Question
If the sum of black dots on the opposite faces of a dice is always 7, then which one of the following figure is correct?
Choices
Choice (4)  Response  

a.  
b.  
c.  
d. 
Question number: 30
» Non Verbal Reasoning » Cubes and Dices
Question
Six opened faces of a cube show some filled shapes. Find the correct figure Of cube after it closed.
Choices
Choice (4)  Response  

a.  
b.  
c.  
d. 