IMO Mathematics Olympiad Class 8: Questions 443  447 of 1029
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Question number: 443
Question
Between a square of perimeter 64 cm and a circle of circumference 64 cm, which figure has larger area and by how much?
Choices
Choice (4)  Response  

a.  Circle, 70  
b.  Circle, 60  
c.  Square, 70  
d.  None of the above 
Question number: 444
Question
A square garden measuring 5 m on a side is surrounded by a 1 m wide path. What is the area of the path?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 445
Question
The radii of the bases of two cylinders are in the ratio of 3: 4 respectively and their heights are in the ratio 4: 5 respectively, find the ratio of their volumes.
Choices
Choice (4)  Response  

a.  20: 3  
b.  20: 9  
c.  9: 20  
d.  3: 20 
Question number: 446
Question
A rectangle field has its length and breadth in the ratio 2: 3. Its area is 3.80 hectares. The cost of fencing it at Rs. 2 per meter is________.
Choices
Choice (4)  Response  

a.  Rs 1000  
b.  Rs 1600  
c.  Rs 1100  
d.  Rs 1500 
Question number: 447
Question
ABC is a right angled triangle with . AH is drawn perpendicular to BC where H lies on BC. If AB = 40 cm and AC = 60 cm, then BH = ________.
Choices
Choice (4)  Response  

a.  25  
b.  50  
c.  30  
d.  40 