GeekInterview.com
   Home |  Tech FAQ  |   Interview Questions |  Placement Papers |  Tech Articles |  Learn |  Freelance Projects |  Online Testing |  Geeks Talk |  Job Postings |  Knowledge Base | Site Search |  Add/Ask Question

  GeekInterview.com  >  Placement Papers  >  Infosys  >  Aptitude

 Print  |  
Question:  If the digits of my present age are reversed then i get the age of my son.If 1 year ago my age was twice as that of my son.Find my present age



February 02, 2009 08:28:56 #2
 naveenkumar17   Member Since: February 2009    Total Comments: 2 
RE: If the digits of my present age are reversed then i get the age of my son.If 1 year ago my age was twice as that of my son.Find my present age
 
My age : 10x+y

Son age : 10y+x

So 10x+y = 10y+x

10x+y-1 = 2(10y+x-1)

x = (19y-1)/8

For y=3 (19y-1) is completely divisible by 8

So x = 7

So my present age : 10*7+3 = 73

Son's age : 10*3+7 = 37
     

 

Back To Question