Mental AbilityBasic Geometry [NCO Cyber Olympiad (SOF) Class 8]: Questions 1  8 of 76
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Question number: 1
» Mental Ability » Basic Geometry
Question
The length of the minute hand on a wall clock is 21 cm. The area swept by the minute hand in 30 minutes is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 2
» Mental Ability » Basic Geometry
Question
The largest possible square is inscribed in a circle of unit radius. The area of the square in square units is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  2 
Question number: 3
» Mental Ability » Basic Geometry
Question
If the radius of a cone is increased by 50%, its volume is increased by
Choices
Choice (4)  Response  

a.  125%  
b.  50%  
c.  75%  
d.  150% 
Question number: 4
» Mental Ability » Basic Geometry
Question
The length of a rope by which a horse must be tethered to graze over an area of 1386 is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 5
» Mental Ability » Basic Geometry
Question
The measure of an angle which is five times its complement is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 6
» Mental Ability » Basic Geometry
Question
If the area of a triangle with base x is equal to area of a square of side x, the altitude of the triangle is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 7
» Mental Ability » Basic Geometry
Question
If the radius of a cone is increased by 65%, its volume is increased by
Choices
Choice (4)  Response  

a.  180%  
b.  172.25%  
c.  108.5%  
d.  125.3% 
Question number: 8
» Mental Ability » Basic Geometry
Question
The length of a rope by which a cow must be tethered to graze over an area of is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
