If ab-a-b=265
bc-b-c=155
ac-c-a=150
then find a+b+c

• (A-1)(B-1)=AB-A-B+1=265+1=266..(1)
  (B-1)(C-1)=BC-B-C+1=155+1=156..(2)
  (C-1)(A-1)=CA-C-A+1=150+1=151..(3)
  (1)/(2) gives..(A-1)/(C-1)=266/156..(4)
  (3)*(4) gives..(A-1)^2=257.47...A=17.04
  Solving other equations..B=17.58 and C=10.4
• 10 years agoHelpfull: Yes(43) No(2)