If 2^x - 2^(x - 2) = 3*2^13 what is the value of x?

Question

If 2^x - 2^(x - 2) = 3*2^13 what is the value of x?  
    
  A. 9  
  B. 11  
  C. 13  
  D. 15  
  E. 17  
    
  Anyone preparing for GMAT, please help? #GMAT #GMATprep

18-597 MANIKANTA_NYNALA · Answer

Option is D ie is 15

Mayank Garg · Answer

Hi,
So I am getting 15 as answer .
D will be correct option.

If 2^x - 2^(x - 2) = 3*2^13 what is the value of x?

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