IMO Level 1 Mathematics Olympiad (SOF) Class 7: Questions 1012  1019 of 1022
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Question number: 1012
Appeared in Year: 2012
Question
Find the value of x.
Choices
Choice (4)  Response  

a.  47.95  
b.  47.932  
c.  47.095  
d.  47.752 
Question number: 1013
Question
The mean of 7 numbers is 40. If one number is included, mean of the numbers becomes 50, and then the included number is________.
Choices
Choice (4)  Response  

a.  120  
b.  140  
c.  150  
d.  130 
Question number: 1014
» Symmetry and Visualizing Solid Shapes
Question
Which letter of the English alphabet has reflection symmetry about vertical mirrors?
Choices
Choice (4)  Response  

a.  H  
b.  N  
c.  Z  
d.  B 
Question number: 1015
Question
The average of the two middle rational numbers if are arranged in descending order is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 1016
Question
If , then x=
Choices
Choice (4)  Response  

a.  0  
b.  2  
c.  3  
d.  1 
Question number: 1017
Question
What fraction of the figure is shaded?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 1018
Question
If the area of a trangle with base 2x is equal to the area of a square with side 2x, then the altitude of the triangle is ________.
Choices
Choice (4)  Response  

a.  4x  
b. 
 
c.  3x  
d.  2x 
Question number: 1019
Question
Salary of a professor increases every year by 10%. His salary in the year 2011 was Rs. 88000. Find his original slary.
Choices
Choice (4)  Response  

a.  Rs. 80,000  
b.  Rs. 90,008  
c.  Rs. 88,000  
d.  Rs. 79,508 