IMO Mathematics Olympiad Class 7: Questions 253  257 of 1012
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Question number: 253
Question
175  70 
The diagram above contains 13 boxes. The numbers in the second and the twelfth boxes are respec tively 175 and 70. Fill up the boxes with natural numbers such that
 Sum of all numbers in all the 13 boxes is 2015,
 Sum of the numbers in any three consecutive boxes is always the same.
The solution must contain the steps how you arrive at the numbers.
Choices
Choice (4)  Response  

a.  210 

b.  212 

c.  207 

d.  208 

Question number: 254
» Practical Geometry  Lines and Angles
Question
In the figure, ABCD is a rhombus and CGEF is a square. Find X.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 255
» Practical Geometry  Lines and Angles
Question
S: If two lines r and m intersect to each other. then the vertically opposite angles are equal.
T: Sum of all angles around a point is
Which of the following statement is true?
Choices
Choice (4)  Response  

a.  S and T are true 

b.  T is true and S is false 

c.  S is true and T is false 

d.  S and T are false 

Question number: 256
» Practical Geometry  Lines and Angles
Question
To construct a triangle how many independent measurements are required ________.
Choices
Choice (4)  Response  

a.  3 

b.  5 

c.  6 

d.  2 

Question number: 257
» Practical Geometry  Lines and Angles
Question
The angle between two hands of clock at pm is ________
Choices
Choice (4)  Response  

a.  95° 

b. 


c. 


d. 

