IMO Mathematics Olympiad Class 8: Questions 162  170 of 1029
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Question number: 162
Question
The area of a square field is sq. m. The length of each side of the field is ________.
Choices
Choice (4)  Response  

a.  1.92 

b.  2.50 

c.  4.00 

d.  2.30 

Question number: 163
Question
= ________
Choices
Choice (4)  Response  

a.  13 

b.  17 

c.  14 

d.  15 

Question number: 164
Question
If then value of is________.
Choices
Choice (4)  Response  

a.  4 

b.  2 

c.  3 

d.  1 

Question number: 165
Question
If , and value of then
Choices
Choice (4)  Response  

a.  1 

b.  0 

c.  3 

d.  2 

Question number: 166
Question
The number must be subtracted from 2329 to get a perfect square is________.
Choices
Choice (4)  Response  

a.  25 

b.  10 

c.  15 

d.  20 

Question number: 167
Question
Square root of is________.
Choices
Choice (4)  Response  

a.  0.5 

b.  0.2 

c.  0.4 

d.  0.1 

Question number: 168
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: 169
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: 170
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 
