Mental AbilityBasic Arithmetic (NCO Cyber Olympiad Class 5): Questions 9  15 of 147
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Question number: 9
» Mental Ability » Basic Arithmetic
Question
Which of the following expression below is true?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c.  2 × (7 + 4) = 7 × (2 × 4)  
d. 

Question number: 10
» Mental Ability » Basic Arithmetic
Question
50 % of 150 are approximately ________.
Choices
Choice (4)  Response  

a.  15  
b.  70  
c.  50  
d.  75 
Question number: 11
» Mental Ability » Basic Arithmetic
Question
30 % of 160 are approximately ________.
Choices
Choice (4)  Response  

a.  48  
b.  32  
c.  59  
d.  50 
Question number: 12
» Mental Ability » Basic Arithmetic
Question
Reena worked over the weekend
Day  Hours 
Saturday  9.5 
Sunday  7 
How many more hours did Reena work on Saturday than on Sunday?
Choices
Choice (4)  Response  

a.  3 hours  
b.  2 hours  
c.  2.5 hours  
d.  1.5 hours 
Question number: 13
» Mental Ability » Basic Arithmetic
Question
Which of the following expression below is true?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  2 × (9 + 4) = 7 × (2 × 4) 
Question number: 14
» Mental Ability » Basic Arithmetic
Question
5 Mins + 25 secs = ________
Choices
Choice (4)  Response  

a.  3 mins 65 secs  
b.  6 mins 95 secs  
c.  3 mins 50 secs  
d.  4 mins 85 secs 
Question number: 15
» Mental Ability » Basic Arithmetic
Question
A Chair was bought for Rs. 1000 and sold for Rs. 900. Then the loss percent is
Choices
Choice (4)  Response  

a.  15%  
b.  5%  
c.  12%  
d.  10% 