Mental AbilityBasic Arithmetic (NCO Cyber Olympiad Class 7): Questions 87  94 of 122
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Question number: 87
» Mental Ability » Basic Arithmetic
Question
If each side of a cube is tripled, its volume
Choices
Choice (4)  Response  

a.  Becomes 27 times 

b.  Becomes 6 times 

c.  Is doubled 

d.  Becomes 4 times 

Question number: 88
» Mental Ability » Basic Arithmetic
Question
The value of is
Choices
Choice (4)  Response  

a.  4.55 

b.  1.00 

c.  2.30 

d.  1.20 

Question number: 89
» Mental Ability » Basic Arithmetic
Question
The cost of cultivating a square field at the rate of rupees 240 per hectare is rupees 1200. What is the cost of putting a fence around it at 50 paise per meter?
Choices
Choice (4)  Response  

a.  900 rupees 

b.  447.21 rupees 

c.  600 rupees 

d.  400 rupees 

Question number: 90
» Mental Ability » Basic Arithmetic
Question
Express 0.5 % as a decimal
Choices
Choice (4)  Response  

a.  0.12 

b.  0.012 

c.  0.005 

d.  12 

Question number: 91
» Mental Ability » Basic Arithmetic
Question
Express the 12 % as a decimal
Choices
Choice (4)  Response  

a.  0.12 

b.  0.012 

c.  12 

d.  0.0012 

Question number: 92
» Mental Ability » Basic Arithmetic
Question
The value of is
Choices
Choice (4)  Response  

a.  44 

b.  15 

c.  35 

d.  10 

Question number: 93
» Mental Ability » Basic Arithmetic
Question
If 12 men working 5 hours a day can do a piece of work in 5 days; in how days will 10 men working for 3 hours a day to do the same piece of work?
Choices
Choice (4)  Response  

a.  11.66 days 

b.  30 days 

c.  10 days 

d.  55 days 

Question number: 94
» Mental Ability » Basic Arithmetic
Question
If , find the value of x.
Choices
Choice (4)  Response  

a.  62 

b.  68 

c.  58 

d.  26 
