Question

5 years ago Ramesh watch 5 times as old as his son Aman was then . Let present ages (in years) of ramesh and aman be x and y respective. write the given data in form of a linear equation in two variables. also represent it graphically

Answer 1

let present age of Ramesh be x

present age of Aman be y

according to the question,

x-5=5(y-5)

=>x-5=5y-25

=>x-5y-5+25=0

=>x-5y+20=0

if x=5,

=>5-5y+20=0

=>25=5y

=>y=25/5=5

=>(x,y)=(5,5)

if x=0,

=>-5y=-20

=>y=20/5=4

=>(x,y)=(0,4)

if x=-5

=>-5-5y+20=0

=>-5y+15=0

=>-5y=-15

=>y=15/5=3

=>(x,y)=(-5,3)

HOPE U UNDERSTAND

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