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If x and y are positive integers,what is the value of x + y? https://gmatclub.com/forum/ifxandyarepositiveintegerswhatisthevalueofxy164100.html 
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Author:  A4G [ 03 Dec 2013, 16:09 ] 
Post subject:  If x and y are positive integers,what is the value of x + y? 
If x and y are positive integers, what is the value of x + y ? (1) \(2^x 3^y= 72\) (2) \(2^x 2^y = 32\) 
Author:  A4G [ 03 Dec 2013, 16:13 ] 
Post subject:  Re: If x and y are positive integers,what is the value of x + y? 
A4G wrote: If x and y are positive integers, what is the value of x + y ? (1) 2^x 3^y= 72 (2) 2^x 2^y = 32 Statement 1: Since x and y are integers, there is only possibility. 72 = 8*9 = 2^3 * 3^2 So x = 3 and y = 2. We can find x+y = 3+2 = 5 =>Sufficient . Statement 2 : LHS : 2^x 2^y = 2^(x+y) RHS : 32 = 2^5 2^(x+y) = 2^5 Hence x+y = 5. =>Sufficient . Answer = D 
Author:  Kinshook [ 21 Jul 2019, 03:33 ] 
Post subject:  Re: If x and y are positive integers,what is the value of x + y? 
A4G wrote: If x and y are positive integers, what is the value of x + y ? (1) \(2^x 3^y= 72\) (2) \(2^x 2^y = 32\) Given: x and y are positive integers Asked: What is the value of x + y ? (1) \(2^x 3^y= 72\) \(2^x 3^y= 72 = 2^3*3^2\) x=3 y=2 x+y = 5 SUFFICIENT (2) \(2^x 2^y = 32\)[/quote] \(2^x 2^y = 32\) = 2^5 x+y = 5 SUFFICIENT IMO D 
Author:  bumpbot [ 25 Jan 2022, 09:37 ] 
Post subject:  Re: x and y are positive not positive integers 
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