linear equation

Asked by Sanjula | 13th Jun, 2009, 12:21: PM

Expert Answer:

Let present ages of sagar and  tiru are x and y.

Now we have:

x-5=2(y-5)

x=2y-5 ...(1)

x+10=y+10+10

x=y+10...(2)

 

Now the plots can be drawn easily and the solution is found easily by seeing the intersection of following curves:

The solution thus is :(25,15). The age of sagar when tiru was born was 10 years.

 

 

 

 

 

 

 

 

 

Answered by  | 13th Jun, 2009, 06:17: PM

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