Mental Ability (NCO Cyber Olympiad Class 6): Questions 327  330 of 394
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Question number: 327
» Mental Ability » Basic Arithmetic
Appeared in Year: 2011
Question
Ms. Monika wrote the equation on a chalkboard.
If the equation Ms. Monika wrote is true, which of the following equations must also be true?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 328
» Mental Ability » Basic Arithmetic
Appeared in Year: 2011
Question
Niara practiced the violin for 6 days. On the first day, she practiced for 50 minutes. Each of the following days, she practiced 5 minutes less than the previous day. How many minutes did she practiced in all?
Choices
Choice (4)  Response  

a.  225 minutes  
b.  175 minutes  
c.  150 minutes  
d.  220 minutes 
Question number: 329
» Mental Ability » Basic Arithmetic
Appeared in Year: 2011
Question
Study the map. What is the difference between the lengths of the two Rivers?
Choices
Choice (4)  Response  

a.  5.6 km  
b.  4.1 km  
c.  4.3 km  
d.  5.9 km 
Question number: 330
» Mental Ability » Basic Arithmetic
Appeared in Year: 2011
Question
A room is having half area compare to hall of a house that is having an area of 120 . If Aahna wants to put a chair in the room that covers the onefifth area of the tiles of room. How many area covers by the chair in the room with tiles?
Choices
Choice (4)  Response  

a.  11  
b.  18  
c.  15  
d.  12 