Mental Ability (NCO Cyber Olympiad (SOF) Class 9): Questions 184  188 of 219
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Question number: 184
» Mental Ability » Basic Algebra
Appeared in Year: 2011
Question
The given cube is constructed so that the sphere shown would fit inside it, touching the center of each face of the cube at exactly one point. Which of the following lengths best represents the diameter of the sphere?
Choices
Choice (4)  Response  

a.  LJ 

b.  LK 

c.  HK 

d.  HJ 

Question number: 185
» Mental Ability » Basic Algebra
Appeared in Year: 2011
Question
is expressed as a product of a linear factor and a quadratic factor. The linear factor is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  All of the above 

Question number: 186
» Mental Ability » Basic Algebra
Question
Which of the equations below represents the second step of the solution process?
Step 1.
Step 2. ________
Step 3.
Step 4.
Step 5.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 187
» Mental Ability » Basic Algebra
Question
A classroom contained an equal number of boys and girls. Eight girls left to play hockey, leaving twice as many boys as girls in the classroom. Then the number of students in the class originally was________
Choices
Choice (4)  Response  

a.  25 

b.  14 

c.  18 

d.  None of the above 

Question number: 188
» Mental Ability » Basic Algebra
Question
A Stadium contained an equal number of boys and girls. 20 boys left to play volleyball, leaving twice as many girls as boys in the Stadium. Then the number of students in the Stadium originally was________
Choices
Choice (4)  Response  

a.  80 

b.  100 

c.  120 

d.  90 
