Q:
      
      
         
            
What is the common ratio of the following geometric sequence?
4, 2, 1, 0.5, 0.25, 0.125,...
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: A) 0.5         
         
Explanation: In mathematics, a geometric progression, also known as a geometric sequence, is a sequence of numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the common ratio.
 
Herein the given sequence, 4, 2, 1, 0.5, 0.25, 0.125,...
Common Ratio r = 2/4 = 1/2 = 0.5/1 = 0.25/0.5 = 0.125/0.25 == 0.5.
       
      
      
      
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