Question

EXERCISE 41
1.
The cost of a notebook is twice the cost of a pan write a mear equitum in
variables to represent this statement
(Take the cost of a notebook to be I and that of a pen to be​

Answer 1

Answer:

Let the cost of a notebook = Rs. x

and the cost of a pen = Rs. y

According to the condition, we have

[Cost of a notebook] =2 x [Cost of a pen]

i. e„ (x) = 2 x (y) or, x = 2y

or, x – 2y = 0

Thus, the required linear equation is x – 2y =0

Answer 2

Answer:

cost of note book 2× cost of pen

×=2y

x-2y=0