Question

the price of 3 note books and 5 pens together is 75 rupees. the price of 3 note books and 10 pens together 90 rupees. what is the price of a notebook? what is the price of a pen?


Please answer my question it is a urgent ​

Answer 1

Step-by-step explanation:

price of 3 note books + 5 pens = Rs. 75

price of 3 note books + 10 pens = Rs. 90

3 note books + 5 pens + 5 pens = 90

we already know 3 notebooks + 5 pens = 75

substituting

75 + 5 pens = 90

5 pens = 90 - 75 = 15

1 pen = 15/5 = Rs. 3

3 notebooks + 5 pens = 75

3 notebooks + 15 = 75

3 notebooks = 75 - 15 = 60

1 notebook = 60/3 = 20

price of one pen is Rs. 3 and price of one notebook is Rs. 20.

Answer 2

Answer:

let the price of a notebook=x

price of a pen=y