Everyday Mathematics [IMO Level 1 Mathematics Olympiad (SOF) Class 10]: Questions 6  10 of 68
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Question number: 6
» Everyday Mathematics
Question
A boy was asked to multiply a given number by . Instead, he divided the given number by and got the result 225 more than what he should have got if he had multiplied the number by . The given number was ________.
Choices
Choice (4)  Response  

a.  17  
b.  136  
c.  64  
d.  8 
Question number: 7
» Everyday Mathematics
Question
Sumit has 27 small cubes of . He wants to arrange all of them in a cuboidal shape, such that the surface area will be minim um. What is the diagonal of this larger cuboid?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 8
» Everyday Mathematics
Question
Five years ago, a father was four times as old as his son. 8 years later, father’s age will be exceeding his son’s age by 12 years. The ratio of the present ages of father and son is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 9
» Everyday Mathematics
Question
5 bells commence tolling together and toll at intervals of 3,6, 9,12 and 15 seconds respectively. In 12 minutes, how many times do they toll together?
Choices
Choice (4)  Response  

a.  7  
b.  4  
c.  6  
d.  5 
Question number: 10
» Everyday Mathematics
Question
The present ages of A, B and C are in proportions . Eight years ago, the sum of their ages was 76. What are their present ages (in years)?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
