IMO Level 1 Mathematics Olympiad (SOF) Class 9: Questions 416  422 of 929
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Question number: 416
Question
Which of the points A (0,6), B (2,4), C (4,0), D (0, 2), E (0, 5), F (4, 4) do lie on the Quadrant 1 and 4?
Choices
Choice (4)  Response  

a.  Q, R, W, U and T  
b.  P, S, W, U and R  
c.  P, R, T, U and X  
d.  Q, R, T, V and X 
Question number: 417
Question
If the height of cone is thrice, then its volume is increased by________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 418
Question
The altitude drawn to the base of an isosceles triangle is of length 6 cm and the perimeter is 72 cm. the area of the triangle is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 419
Question
A rectangular field has its length and breadth in the ratio . Its area is 10.29 hectares. The cost of fencing it at RS. 8 per meter is ________
Choices
Choice (4)  Response  

a.  Rs. 21500  
b.  Rs. 15400  
c.  Rs. 14200  
d.  Rs. 11200 
Question number: 420
Question
The volume of the largest circular cone that can be cut of a cube whose edge is 16 cm is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 421
Question
In the figure , and . Then x equals ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 422
Question
From each corner of a square of side 6 cm a quadrant of a circle of radius 2 cm is cut and also a circle of diameter 4 cm is cut as shown in the figure, then the area of the remaining portion of the square is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
