NCO Cyber Olympiad Class 9: Questions 376  380 of 440
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Question number: 376
» Computers » Memory & Storage Devices
Question
This is an internal structure of which computer component?
Choices
Choice (4)  Response  

a.  CPU 

b.  CDROM drive 

c.  Hard Disk 

d.  Floppy Disk 

Question number: 377
» Mental Ability » Basic Algebra
Question
A 108cm piece of wire was cut into equal segments, which were then soldered at the ends to form the edges of a cube. What is the volume of the cube?
Choices
Choice (4)  Response  

a.  648 cm3 

b. 


c. 


d. 


Question number: 378
» Mental Ability » Basic Algebra
Question
Rahul has a broken fan belt on his car. The belt goes around 2 pulleys, whose centers are 15 cm apart and each pulley is 4 cm in diameter. How long should the belt be?
Choices
Choice (4)  Response  

a.  45.6 cm 

b.  42.6 cm 

c.  40 cm 

d.  45 cm 

Question number: 379
» Mental Ability » Basic Algebra
Question
A Stadium contained an equal number of boys and girls. 15 girls left to play tennis, leaving twice as many boys as girls in the Stadium. Then the number of students in the Stadium originally was________
Choices
Choice (4)  Response  

a.  40 

b.  70 

c.  60 

d.  15 
