Mental Ability (NCO Cyber Olympiad (SOF) Class 5): Questions 9  14 of 257
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Question number: 9
» Mental Ability » Basic Arithmetic
Question
Rahul worked over the weekend
Day  Hours 
Saturday  10.5 
Sunday  9 
How many more hours did Rahul work on Saturday than on Sunday?
Choices
Choice (4)  Response  

a.  2.5 hours 

b.  4.5 hours 

c.  1.5 hours 

d.  3.5 hours 

Question number: 10
» Mental Ability » Basic Geometry
Question
Steps for construction:
1. Draw a line segment MN.
2. With M, N as centers and radius greater than half of MN. Draw four arcs to cut on either side of MN. Let the points of intersection be A and B.
3. Join AB to cut MN at O. Then AB is.
Choices
Choice (4)  Response  

a.  Perpendicular bisector of a given line segment. 

b.  Perpendicular at a point on the line. 

c.  Perpendicular to a line from a point not on it. 

d.  Angle bisector 

Question number: 11
» Mental Ability » Basic Arithmetic
Question
Which of the following expression below is true?
Choices
Choice (4)  Response  

a. 


b. 


c.  2 × (7 + 4) = 7 × (2 × 4) 

d. 


Question number: 12
» Mental Ability » Basic Arithmetic
Question
50 % of 150 are approximately ________.
Choices
Choice (4)  Response  

a.  15 

b.  70 

c.  50 

d.  75 

Question number: 13
» Mental Ability » Basic Arithmetic
Question
30 % of 160 are approximately ________.
Choices
Choice (4)  Response  

a.  48 

b.  32 

c.  59 

d.  50 

Question number: 14
» Mental Ability » Basic Arithmetic
Question
Reena worked over the weekend
Day  Hours 
Saturday  9.5 
Sunday  7 
How many more hours did Reena work on Saturday than on Sunday?
Choices
Choice (4)  Response  

a.  3 hours 

b.  2 hours 

c.  2.5 hours 

d.  1.5 hours 
