Question

The cost of a book is four times the cost of a pen. Write a linear equation inin two variables for the given situation

Answer 1

Let the cost of a book be Rs x
and that of a pen be Rs y
So, as per the condition,
The linear equation in two variables is
x = 4y

Answer 2

HEYA!


HERE IS THE ANSWER FOR YOUR QUESTION :

LET COST OF BOOK BE X
LET COST OF PEN BE Y


SO,

X=4Y SINCE COST OF BOOK FOUR TIMES THE PEN!

I HOPE YOU UNDERSTOOD!