Mental Ability (NCO Cyber Olympiad Class 7): Questions 86  90 of 205
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Question number: 86
» Mental Ability » Basic Statistics
Question
Match the following.
ListⅠ ( List I  ListⅡ ( List II 

(A) Orthocenter  (i) The point at which the three angle bisectors of a triangle meet 
(B) Circumcenter  (ii) The point of intersection of the perpendicular of the sides of a triangle 
(C) In Centre  (iii) The point at which the medians of a triangle meet 
(D) Centroid  (iv) The point at which the altitudes of a triangle meet 
Choices
Choice (4)  Response  

 
a. 
 
b. 
 
c. 
 
d. 

Question number: 87
» Mental Ability » Basic Arithmetic
Question
A train 600 meters long is running at a speed of If it crosses a tunnel in 1 minute, then the length of the tunnel (in meters) is.
Choices
Choice (4)  Response  

a.  500  
b.  130  
c.  300  
d.  360 
Question number: 88
» Mental Ability » Basic Arithmetic
Question
A cistern can be filled by two tapes A and B in 5 hours and 8 hours respectively. How much time will the cistern be filled up completely?
Choices
Choice (4)  Response  

a.  3.08 hours  
b.  24 hours  
c.  48 hours  
d.  3.6 hours 
Question number: 89
» Mental Ability » Number Games
Question
A man has Rs. 396 in the denominations of 1rupee notes, 5rupee notes and 10rupee notes, 20rupee notes. The number of notes of each denomination is equal. What is the total number of notes that he has?
Choices
Choice (4)  Response  

a.  60  
b.  48  
c.  75  
d.  44 
Question number: 90
» Mental Ability » Basic Arithmetic
Question
8 children and 12 men completed a certain piece of work in 9 days. Each children takes twice the time taken by a man to finish the work. In how many days will 12 men finish the same work?
Choices
Choice (4)  Response  

a.  9  
b.  12  
c.  8  
d.  15 