IMO Level 2 Mathematics Olympiad (SOF) Class 9: Questions 5  7 of 48
Access detailed explanations (illustrated with images and videos) to 48 questions. Access all new questions we will add tracking exampattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.
Rs. 100.00 or
How to register?
Question number: 5
Appeared in Year: 2013
Question
A large solid sphere of diameter 15 m is melted and recast into several small spheres of diameter 3 m. What is the percentage increase in the surface area of the smaller spheres over that of the large sphere?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  Can’t be determined 

Question number: 6
» Analytical Reasoning and Logical Reasoning
Appeared in Year: 2013
Question
Select a figure from amongst the given options, which will continue the same series as established by the five Problem Figures.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 7
Appeared in Year: 2013
Question
Kamla has a triangular field with sides 240 m, 200 m, 360 m, where she grew wheat. In another triangular field with sides 240 m, 320 m, 400 m adjacent to the previous field, she wanted to grow potatoes and onions. She divided the field in two parts by joining the midpoint of the longest side to the opposite vertex and grew potatoes in one part and onions in the other part. How much area (in hectares) has been used for wheat, potatoes and onions? ().
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  None of the above 
