Mathematics
Grade10
Easy

Question

The constant ratio of the geometric sequence 10.5, 21, 42, 84… is ______.

  1. fraction numerator 1 over denominator 3 end fraction    
  2. fraction numerator 3 over denominator 2 end fraction    
  3. 2    
  4. 6    

Hint:

For the given sequence, the constant ratio is fraction numerator 21 over denominator 10.5 end fraction

The correct answer is: 2


    The given geometric sequence is fraction numerator 3 over denominator 2 end fraction comma fraction numerator 1 over denominator 2 end fraction comma fraction numerator 1 over denominator 6 end fraction comma fraction numerator 1 over denominator 18 end fraction comma horizontal ellipsis
    For the given sequence, the constant ratio is fraction numerator 21 over denominator 10.5 end fraction equals 2

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