Mental AbilityBasic Arithmetic (NCO Cyber Olympiad Class 6): Questions 79  84 of 268
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Question number: 79
» Mental Ability » Basic Arithmetic
Question
Choices
Choice (4)  Response  

a.  1 

b.  cannot be determined 

c.  0 

d.  1 

Question number: 80
» Mental Ability » Basic Arithmetic
Question
If the selling price of 5 books is same as the cost price of 6 books then gain percent is……….
Choices
Choice (4)  Response  

a.  19% 

b.  20% 

c.  15% 

d.  5% 

Question number: 81
» Mental Ability » Basic Arithmetic
Question
Which set of data given below not show a constant rate of change?
Choices
Choice (4)  Response  

a. 

 
b. 

 
c. 

 
d. 


Question number: 82
» Mental Ability » Basic Arithmetic
Question
A bike can travels at 55 kmph and another at 45 kmph. Ratio of their speeds is
Choices
Choice (4)  Response  

a.  10: 3 

b.  11: 9 

c.  9: 11 

d.  3: 10 

Question number: 83
» Mental Ability » Basic Arithmetic
Question
By how much must 15 be decreased so that it bears same ratio to 9 as 20 to 15?
Choices
Choice (4)  Response  

a.  5 

b.  4 

c.  3 

d.  1 

Question number: 84
» Mental Ability » Basic Arithmetic
Question
A cloth merchant bought 20 sarees at the rate of Rs. 250 per sarees. If he sold them for Rs. 4800, his loss will be
Choices
Choice (4)  Response  

a.  20 Rs. 

b.  200 Rs. 

c.  1000 Rs. 

d.  2000 Rs. 
