IMO Level 1 Mathematics Olympiad (SOF) Class 8: Questions 131  139 of 1040
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Question number: 131
Question
The least two digit number, which is a perfect square is ________
Choices
Choice (4)  Response  

a.  4 

b.  16 

c.  12 

d.  9 

Question number: 132
Question
Find the smallest square number which is exactly divisible by 8,12,15, and 20 is, ________
Choices
Choice (4)  Response  

a.  180 

b.  2500 

c.  900 

d.  3600 

Question number: 133
Question
Which of the following is not a perfect square?
Choices
Choice (4)  Response  

a.  12544 

b.  23457 

c.  100489 

d.  5329 

Question number: 134
Question
If , then the value of is________.
Choices
Choice (4)  Response  

a.  5 

b.  4 

c.  8 

d.  2 

Question number: 135
Question
If , then the value of is________.
Choices
Choice (4)  Response  

a.  7 

b.  4 

c.  3 

d.  5 

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.  14 

b.  13 

c.  11 

d.  12 

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.  2.50 

b.  5.42 

c.  2.30 

d.  1.92 

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

a.  3 

b. 


c. 


d.  0 

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 
