IMO Mathematics Olympiad Class 8: Questions 511  517 of 1029
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Question number: 511
» Direct and Inverse Proportions
Question
If and, then the value of is ________.
Choices
Choice (4)  Response  

a.  15 

b.  65 

c.  85 

d.  75 

Question number: 512
Question
The value of is ________.
Choices
Choice (4)  Response  

a.  8044 

b.  2044 

c.  4450 

d.  1024 

Question number: 513
Question
The value of
Choices
Choice (4)  Response  

a.  15 

b.  11 

c.  17 

d.  16 

Question number: 514
» Direct and Inverse Proportions
Question
Two numbers are in the ratio 5: 7. If each number is increased by 14, the ratio becomes 7: 9. The numbers are________.
Choices
Choice (4)  Response  

a.  35, 47 

b.  25, 35 

c.  35, 25 

d.  35, 49 

Question number: 515
Question
Number of prime factors in is
Choices
Choice (4)  Response  

a.  65 

b.  73 

c.  70 

d.  72 

Question number: 516
Question
Match the following provided that a and b are any rational numbers different from zero andx, y are any rational numbers.ListⅠ (Uses Of Exponent Rules)  ListⅡ (Term With Different Base And Same Exponent) 

(A)
 (i)

(B)
 (ii)

(C)
 (iii)

Choices
Choice (4)  Response  

 
a. 


b. 


c. 


d. 


Question number: 517
Question
The value of is________.
Choices
Choice (4)  Response  

a.  1 

b. 


c.  9 

d.  7 
