Mental AbilityBasic Algebra (NCO Cyber Olympiad Class 9): Questions 81  86 of 101
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Question number: 81
» Mental Ability » Basic Algebra
Question
If , find the value of .
Choices
Choice (4)  Response  

a.  445 

b.  488 

c.  250 

d.  446 

Question number: 82
» Mental Ability » Basic Algebra
Question
An influenza virus is 5, 900, 000, 000 meter in diameter. Which of these expresses this distance in scientific notation?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 83
» Mental Ability » Basic Algebra
Question
A 72cm piece of wire was cut into equal segments, which were then soldered at the ends to form the edges of a cube. What is the volume of the cube?
Choices
Choice (4)  Response  

a.  576 cm3 

b. 


c. 


d. 


Question number: 84
» Mental Ability » Basic Algebra
Appeared in Year: 2011
Question
Which of the following is correct?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  All of the above 

Question number: 85
» Mental Ability » Basic Algebra
Question
An influenza virus is 0.00000012 meter in diameter. Which of these expresses this distance in scientific notation?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 86
» Mental Ability » Basic Algebra
Question
Anita has a broken fan belt on her car. The belt goes around 2 pulleys, whose centers are 30 cm apart and each pulley is 10 cm in diameter. How long should the belt be?
Choices
Choice (4)  Response  

a.  88.6 cm 

b.  23.6 cm 

c.  80.8 cm 

d.  91.4 cm 
