NCO Cyber Olympiad (SOF) Class 7: Questions 209  213 of 417
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Question number: 209
» Mental Ability » Basic Arithmetic
Question
The average age of 30 children in a class is 10 years. If the teacher’s age is included, the average age becomes 12 years. Find the teacher’s age.
Choices
Choice (4)  Response  

a.  45 

b.  42 

c.  72 

d.  35 

Question number: 210
» Mental Ability » Basic Arithmetic
Question
Choices
Choice (4)  Response  

a.  19418 

b.  5012.5 

c.  2190 

d.  19578 

Question number: 211
» Non Verbal Reasoning » Cubes and Dices
Question
Two positions of a dice are shown below. When there are 4 circles at the top, the number of circles at the bottom will be
Choices
Choice (4)  Response  

a.  6 

b.  3 

c.  4 

d.  5 

Question number: 212
» Verbal Reasoning » Alphabet Test
Question
In a certain code, SUNDAY is coded as YADNUS. How would CREATION be code in that code?
Choices
Choice (4)  Response  

a.  INOTAERL 

b.  IONTEARC 

c.  NOITAERC 

d.  ERCITANO 

Question number: 213
» Mental Ability » Basic Statistics
Question
Which of the following options are correct?
1. Every integer is a rational number and every fraction is a rational number
2. A rational number is positive if p and q are either both positive and both negative.
3. A rational number is negative if one of p and q is positive and the other is negative.
4. If there are two rational numbers with common denominator then the one with the larger numerator is larger than the other.
Choices
Choice (4)  Response  

a.  Statements 2 and 3 are incorrect 

b.  Statement 1 is incorrect 

c.  Statements 1 and 4 and incorrect 

d.  None of the above 
