Permutations and CombinationsSimple Applications (KVPY Stream SBSX (Class 12 & 1st Year B.Sc.) Math): Questions 1  4 of 4
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Question number: 1
» Permutations and Combinations » Simple Applications
Appeared in Year: 2010
Question
Three vertices are chosen randomly from the seven vertices of a regular 7sided polygon. The probability that they form the vertices of an isosceles triangle is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 2
» Permutations and Combinations » Simple Applications
Appeared in Year: 2010
Question
The number of rectangles that can be obtained by joining four of the twelve vertices of a 12sided regular polygon is –
Choices
Choice (4)  Response  

a.  66 

b.  15 

c.  24 

d.  30 

Question number: 3
» Permutations and Combinations » Simple Applications
Appeared in Year: 2014
Question
Let X be a set of elements. The numbers of ordered pairs of subsets of such that satisfies:
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 4
» Permutations and Combinations » Simple Applications
Appeared in Year: 2016
Question
The number of noncongruent integer – sided triangles whose sides belong to the set is –
Choices
Choice (4)  Response  

a.  446 

b.  448 

c.  283 

d.  449 
