IMO Mathematics Olympiad (SOF) Class 8: Questions 136  144 of 1029
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Question number: 136
Question
A number is multiplied by half of itself and then 10 is added to the product. If the final result is 82, then find the original number.
Choices
Choice (4)  Response  

a.  11 

b.  14 

c.  12 

d.  13 

Question number: 137
Question
The area of a square field is sq. m. The length of each side of the field is ________.
Choices
Choice (4)  Response  

a.  2.30 

b.  5.42 

c.  2.50 

d.  1.92 

Question number: 138
Question
The value of is________.
Choices
Choice (4)  Response  

a.  0 

b.  3 

c. 


d. 


Question number: 139
Question
The square root of correct to two decimal places is
Choices
Choice (4)  Response  

a.  2.86 

b.  1.87 

c.  2.88 

d.  2.33 

Question number: 140
Is the Following Statement True or False?
If p and q are perfect squares, then is always a rational number, is the statement true?
Question number: 141
Question
Square root of is________.
Choices
Choice (4)  Response  

a.  17 

b.  11 

c.  14 

d.  15 

Question number: 142
Question
Between which two consecutive whole numbers does lie?
Choices
Choice (4)  Response  

a.  6 and 7 

b.  10 and 11 

c.  9 and 10 

d.  8 and 9 

Question number: 143
Question
Between which two consecutive whole numbers does lie?
Choices
Choice (4)  Response  

a.  7 and 8 

b.  9 and 10 

c.  8 and 9 

d.  10 and 11 

Question number: 144
Question
Find the smallest square number which is exactly divisible by 2,3, 9,15 and 30 is, ________
Choices
Choice (4)  Response  

a.  100 

b.  500 

c.  180 

d.  900 
