Number System (IMO Mathematics Olympiad Class 7): Questions 9  14 of 81
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1012 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 450.00 or
Question number: 9
» Number System
Question
Which of the following is an irrational number?
Choices
Choice (4)  Response  

a.  2 

b. 


c. 


d.  1.50 

Question number: 10
» Number System
Question
In a magic square each row, column and diagonal have the same sum, then the values of A and B are respectively________.
3  4  1 
2  A  2 
1  B  3 
Choices
Choice (4)  Response  

a. 


b.  4, 0 

c.  1, 1 

d. 


Question number: 11
» Number System
Question
An insect crawls up 5 cm every second on a 60 cm vertical rod and then falls down 2 cm over the next second. How many seconds will it take to climb the rod?
Choices
Choice (4)  Response  

a.  39 seconds 

b.  30 seconds 

c.  60 seconds 

d.  20 seconds 

Question number: 12
» Number System
Question
The average of the two middle rational numbers if are arranged in ascending order is________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 13
» Number System
Question
The value of is ________.
Choices
Choice (4)  Response  

a. 


b.  144 

c.  240 

d.  0 

Question number: 14
» Number System
Question
8 is a ________ number
Choices
Choice (4)  Response  

a.  Prime 

b.  Irrational 

c.  Rational 

d.  Question does not provide sufficient data or is vague 
