Mental AbilityBasic Arithmetic (NCO Cyber Olympiad Class 7): Questions 24  32 of 122
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Question number: 24
» 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: 25
» 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: 26
» 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: 27
» Mental Ability » Basic Arithmetic
Question
If = 81, then n=?
Choices
Choice (4)  Response  

a.  4 

b.  8 

c.  2 

d.  6 

Question number: 28
» Mental Ability » Basic Arithmetic
Question
9 % expressed as a fraction is ________?
Choices
Choice (4)  Response  

a. 


b.  4 

c. 


d.  10 

Question number: 29
» Mental Ability » Basic Arithmetic
Question
A number divided by 3 is 7 less than that number, what is the number?
Choices
Choice (4)  Response  

a.  10.5 

b.  15 

c.  25 

d.  20 

Question number: 30
» Mental Ability » Basic Arithmetic
Question
If () = (), then ( ) =?
Choices
Choice (4)  Response  

a.  3 

b.  1 

c.  5 

d.  4 

Question number: 31
» Mental Ability » Basic Arithmetic
Question
8% expressed as a fraction is ________?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 32
» Mental Ability » Basic Arithmetic
Question
7 % expressed as a fraction is ________?
Choices
Choice (4)  Response  

a. 


b. 


c.  10 

d. 

