This isn't right. Dropping both y terms is the same as setting y to zero. The answer you get is correct, but there are many others as has been said.
You could get a unique solution if the route were constrained to be monotonic (level and up or else level and down). On Sep 14, 4:28 pm, Minotauraus <[email protected]> wrote: > Actually the solution is unique. The middle part with the Ys is the > same and therefore can be omitted out. Now you are left with > 2 equations and 2 unknowns. > > I used time in minutes and I have x = 1.28, z = 0.30476 units (y can > be found out). > > I guess the trick was 1. to write the equations that Yan did > and 2. to recognize that the plain part is the same and hence can be > cancelled. > > On Sep 14, 3:31 am, Yan Wang <[email protected]> wrote: > > > > > actually, there are many solutions, just pick up one from them... > > > On Tue, Sep 14, 2010 at 3:23 AM, Abhilasha jain > > > <[email protected]> wrote: > > > how can u solve 3 variables using 2 equations? > > > > On Tue, Sep 14, 2010 at 3:44 PM, Yan Wang <[email protected]> > > > wrote: > > > >> x/72 + y/64 + z/56 = 4 > > >> & > > >> x/56 + y/64 + z/72 = 4+2/3 > > > >> find a solution to this ... > > > >> On Tue, Sep 14, 2010 at 2:31 AM, bittu <[email protected]> > > >> wrote: > > >> > Amazon Interview Question for Software Engineer / Developers > > > >> > A car has speed of 72 64 56 in downhill, plain and uphill > > >> > respectively . A guy travels in the car from Pt. A to pt. B in 4 Hrs > > >> > and pt. B to pt. A in 4 Hrs and 40 min. what is the distance between A > > >> > and B? > > > >> > Regards > > >> > Shashank > > > >> > -- > > >> > You received this message because you are subscribed to the Google > > >> > Groups "Algorithm Geeks" group. > > >> > To post to this group, send email to [email protected]. > > >> > To unsubscribe from this group, send email to > > >> > [email protected]. > > >> > For more options, visit this group at > > >> >http://groups.google.com/group/algogeeks?hl=en. > > > >> -- > > >> You received this message because you are subscribed to the Google Groups > > >> "Algorithm Geeks" group. > > >> To post to this group, send email to [email protected]. > > >> To unsubscribe from this group, send email to > > >> [email protected]. > > >> For more options, visit this group at > > >>http://groups.google.com/group/algogeeks?hl=en. > > > > -- > > > You received this message because you are subscribed to the Google Groups > > > "Algorithm Geeks" group. > > > To post to this group, send email to [email protected]. > > > To unsubscribe from this group, send email to > > > [email protected]. > > > For more options, visit this group at > > >http://groups.google.com/group/algogeeks?hl=en.- Hide quoted text - > > - Show quoted text - -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
