Question

Find cost of pencil and eraser

Answer 1

$<b><font face=Copper black size=4 colour=purple>$$<b><marquee direction = "up" > <h3>$Let,

Cost of one pencil = Rs. x

Cost of one eraser = Rs. y

A/q

2x + 3y = 9

Also,

4x + 6y = 18

Taking common

2 ( 2x + 3y ) = 2 ( 9 )

2x + 3y = 9

Both the equations becomes same.

This indicates that the lines are parallel and no zero exists.

^^"