Mental AbilityBasic Arithmetic (NCO Cyber Olympiad Class 5): Questions 121  125 of 147
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Question number: 121
» 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  6290 
2  7290 
3  8520 
4  5260 
Which is the best estimate of the total number of calls received in the fourweek period?
Choices
Choice (4)  Response  

a.  25000 

b.  27000 

c.  20000 

d.  15000 

Question number: 122
» 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.  Multiply by 3 then add 2 

b.  Add 5 

c.  Subtract 9 

d.  Multiply by 2 then add 2 

Question number: 123
» Mental Ability » Basic Arithmetic
Question
Which figure corresponds to the given ordered pairs? (1, 10) (4, 10) (1, 12) (4, 12).
Choices
Choice (4)  Response  

a.  B 

b.  A 

c.  D 

d.  C 

Question number: 124
» Mental Ability » Basic Arithmetic
Question
Choices
Choice (4)  Response  

a.  1 

b. 


c. 


d. 


Question number: 125
» Mental Ability » Basic Arithmetic
Question
Mohan has 12 Bulls basketball cards. Tony has 3 times as many bulls cards as Mohan. Johan has 16 fewer Bulls cards than Tony. Which of these equations could correctly represent how many Bulls basketball cards Johan has?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  12 + 3 +16 
