Mental Ability (NCO Cyber Olympiad Class 5): Questions 140  144 of 257
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Question number: 140
» Mental Ability » Basic Arithmetic
Question
What is the difference in the temperatures of Monday and Wednesday?
Choices
Choice (4)  Response  

a.  10 C 

b.  5 C 

c.  0 C 

d.  20 C 

Question number: 141
» Mental Ability » Basic Arithmetic
Question
The given table shows the number of phone calls a radio station received each week for the last month.
WEEKLY PHONE CALLS
Week  Number of calls Received 
1  6289 
2  7941 
3  4306 
4  6755 
Which is the best estimate of the total number of calls received in the fourweek period?
Choices
Choice (4)  Response  

a.  15000 

b.  20000 

c.  30000 

d.  25000 

Question number: 142
» Mental Ability » Basic Arithmetic
Question
The picture below shows what happened when different numbers were put in the same number machine
Which could be the rule used in this number machine?
Choices
Choice (4)  Response  

a.  Subtract 9 

b.  Multiply by 3 then add 2 

c.  Multiply by 2 then add 2 

d.  Add 5 

Question number: 143
» Mental Ability » Number Games » Number Series
Question
6, 11, 21, 36, 56, ?
Choices
Choice (4)  Response  

a.  91 

b.  42 

c.  51 

d.  81 

Question number: 144
» Mental Ability » Basic Arithmetic
Question
What fraction is the shaded part?
Choices
Choice (4)  Response  

a.  2 

b. 


c. 


d.  3 
