Mental Ability (NCO Cyber Olympiad Class 7): Questions 40  46 of 205
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Question number: 40
» Mental Ability » Basic Arithmetic
Question
If ( ) = ( ), then =?
Choices
Choice (4)  Response  

a.  0  
b.  4  
c. 
 
d. 

Question number: 41
» Mental Ability » Basic Arithmetic
Question
The average of 5 results is 46 and that of the first four is 45. The fifth result is ________.
Choices
Choice (4)  Response  

a.  12.5  
b.  10  
c.  1  
d.  50 
Question number: 42
» Mental Ability » Basic Arithmetic
Question
Sakshi can do a piece of work in 10 days. Tanya is 15 % more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is:
Choices
Choice (4)  Response  

a.  15  
b.  18  
c.  8.5  
d.  25 
Question number: 43
» Mental Ability » Basic Arithmetic
Question
Three friends divide rupees 624 among themselves in the ratio . The share of the third friend is________.
Choices
Choice (4)  Response  

a.  Rs. 192  
b.  Rs. 288  
c.  Rs. 144  
d.  Rs. 148 
Question number: 44
» Mental Ability » Basic Statistics
Question
Nenshi can do a piece of work in 30 days. Kriya is 50 % more efficient than Nenshi. The number of days taken by Kriya to do the same piece of work is:
Choices
Choice (4)  Response  

a.  25  
b.  16  
c.  15  
d.  20 
Question number: 45
» Mental Ability » Basic Arithmetic
Question
If = 81, then n=?
Choices
Choice (4)  Response  

a.  4  
b.  8  
c.  2  
d.  6 
Question number: 46
» Mental Ability » Basic Statistics
Question
Krishna travels 10 km to the north. Then he turns to the right and walks 3 km. Then again he turns to his right and moves 10 km forward. How many km away is he from the starting point?
Choices
Choice (4)  Response  

a.  3 Km  
b.  2 km  
c.  10 km  
d.  5 km 