Square and Square Roots (IMO Mathematics Olympiad Class 8): Questions 48  55 of 67
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Question number: 48
» Square and Square Roots
Question
A number is multiplied by itself and then 6 is added to the product. If the final result is 175, then find the original number.
Choices
Choice (4)  Response  

a.  14 

b.  13 

c.  16 

d.  12 

Question number: 49
» Square and Square Roots
Question
A number is multiplied by half to itself and then 5 is subtracted from the product. If the final result is 123, then find the original number.
Choices
Choice (4)  Response  

a.  12 

b.  16 

c.  14 

d.  11 

Question number: 50
» Square and Square Roots
Question
The number must be subtracted from 6089 to get a perfect square is________.
Choices
Choice (4)  Response  

a.  8 

b.  7 

c.  5 

d.  18 

Question number: 51
» Square and Square Roots
Question
Find the value of .
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 52
» Square and Square Roots
Question
If = 5, then = ________.
Choices
Choice (4)  Response  

a.  400 

b.  100 

c.  169 

d.  144 

Question number: 53
» Square and Square Roots
Following Statement is true or false:
Square root of a negative numbers are imaginary number. This statement is________
Question number: 54
» Square and Square Roots
Question
A number is multiplied by itself and then 72 is subtracted from the product. If the final result is 5928, then find the original number.
Choices
Choice (4)  Response  

a.  36 

b.  60 

c.  50 

d.  62 

Question number: 55
» Square and Square Roots
Question
If , then the value of is________.
Choices
Choice (4)  Response  

a.  3 

b.  4 

c.  2 

d.  5 
