Question

Question 5 Cost of a pen is two and half times the cost of a pencil. Express this situation as a linear equation in two variables. ​

Answer 1

Let the cost of the pencil = $Rs \:x$

Cost of the pen =$Rs\: y$

Cost of the pen = two and half times

of the cost of the pencil

$y =\frac{21}{2} * x$

$y = (\frac{5}{2} )x$

$2y = 5x$