Mental Ability (NCO Cyber Olympiad (SOF) Class 7): Questions 40  47 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 

Question number: 47
» Mental Ability » Basic Arithmetic
Question
9 % expressed as a fraction is ________?
Choices
Choice (4)  Response  

a. 


b.  4 

c. 


d.  10 
