Mental Ability (NCO Cyber Olympiad (SOF) Class 9): Questions 106  112 of 219
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Question number: 106
» Mental Ability » Basic Statistics
Question
Which of the following shows the proper relation?
1. Tall men, 2. Black haired people, 3. Indians
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 107
» Mental Ability » Basic Arithmetic
Question
How much pure alcohol should be added to 400ml of a 15 % solution to make its strength 32%?
Choices
Choice (4)  Response  

a.  100 ml 

b.  95 ml 

c.  90 ml 

d.  80 ml 

Question number: 108
» Mental Ability » Basic Algebra
Question
What is the solution to ?
Choices
Choice (4)  Response  

a.  15 

b.  35 

c.  45 

d.  25 

Question number: 109
» Mental Ability » Basic Algebra
Question
What is the slope of the line ?
Choices
Choice (4)  Response  

a.  4 

b.  5 

c. 


d. 


Question number: 110
» Mental Ability » Basic Algebra
Question
Distance between the points (8, 10) and (4, 5) is
Choices
Choice (4)  Response  

a. 


b.  400 

c. 


d. 


Question number: 111
» Mental Ability » Basic Algebra
Question
If , find the value of .
Choices
Choice (4)  Response  

a.  32 

b.  45 

c.  34 

d.  25 

Question number: 112
» Mental Ability » Basic Algebra
Question
Secants and intersect the circle at R and O respectively. What is the length of ?
Choices
Choice (4)  Response  

a. 


b.  17 

c.  26 

d. 

