NCO Cyber Olympiad Class 9: Questions 55  60 of 440
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Question number: 55
» Mental Ability » Number Games » Number Series
Question
8, 6, 9, 23, 87, ________what number should come next?
Choices
Choice (4)  Response  

a.  226 

b.  128 

c.  345 

d.  429 

Question number: 56
» Mental Ability » Basic Algebra
Question
If , then b equals
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 57
» Mental Ability » Basic Arithmetic
Question
Ramila got married 7 years ago. Today her age is times her age at the time of marriage. Her son’s age is times her age. Her son’s age is________
Choices
Choice (4)  Response  

a.  2.8 years 

b.  5 years 

c.  4.1 years 

d.  3.3 years 

Question number: 58
» Mental Ability » Basic Algebra
Question
The factors of the expression are
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  All a. , b. and c. are correct 

Question number: 59
» Mental Ability » Basic Arithmetic
Question
Three years ago the average age of P and Q was 16 years. With R joining them, the average becomes 20 years. How old is R now?
Choices
Choice (4)  Response  

a.  22 years 

b.  34 years 

c.  45 years 

d.  12 years 

Question number: 60
» Mental Ability » Basic Geometry
Question
Triangle PAB is formed by three tangents to circle O and ; then angle AOB equals
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

