NCO Cyber Olympiad (SOF) Class 10: Questions 68  72 of 461
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Question number: 68
» Mental Ability » Basic Geometry
Question
The top of a ladder is leaning against a building at a point 8 feet above the ground; the bottom of the ladder is 6 feet from the building. What is the length of the ladder?
Choices
Choice (4)  Response  

a.  10 ft  
b.  36 ft  
c.  64 ft  
d.  14 ft 
Question number: 69
» Mental Ability » Basic Geometry
Question
A metallic sheet is of rectangular shape with dimensions . From each one of its corners, a square of 3 cm is cut off. An open box is made of the remaining sheet. Find the volume of the box.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 70
» Mental Ability » Basic Arithmetic
Question
A train for Goa leaves every twenty minutes from a railway station. An enquiry clerk told a passenger that the train had already left five minutes ago and the next train will leave at 11: 35 a. m. At what time did the enquiry clerk give this information to the passenger?
Choices
Choice (4)  Response  

a.  10: 20 a. m.  
b.  11: 15 a. m.  
c.  11: 50 a. m.  
d.  11: 20 a. m. 
Question number: 71
» Mental Ability » Basic Arithmetic
Question
A number when divided by 81 gives a remainder 32. By dividing the same number by 27, what would be the remainder?
Choices
Choice (4)  Response  

a.  3  
b.  6  
c.  9  
d.  5 
Question number: 72
» Mental Ability » Basic Geometry
Question
The radii of two spheres are in the ratio 2: 3. Find the ratio of their surface areas.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
